How to Find the Right Hashtags for Your Niche (Without Guessing)
Most people treat hashtag research like a lottery. They type a few obvious words, slap 30 hashtags on a post, and then wonder why their reach flatlines at 47 people — most of whom are bots or their cousin from Pune. The problem isn't the hashtags themselves. It's the process — or the lack of one.
Here's what actually works: a tiered hashtag strategy built on deliberate research, not gut feel. Once you understand how to layer broad, medium, and niche tags together, you stop gambling and start showing up in front of people who actually care about what you post.
Why the "More is More" Approach Kills Your Reach
Before getting into the how, it's worth understanding why random stacking doesn't work. Instagram's algorithm doesn't reward volume — it rewards relevance signals. When your post gets buried under #travel (1.2 billion posts) but earns zero saves, no comments, and a 2-second average view time, the algorithm reads that as: this content isn't for people who search this tag. Your distribution gets throttled.
The goal is to find hashtags where your content has a real chance of ranking — either briefly on the Recents tab or more sustainably in Top Posts. That only happens when the competition is calibrated to your actual account size and the audience is genuinely interested in your topic.
Step 1 — Build Your Seed List First
Open a plain text file or a Google Sheet. Before touching any tool, spend 10 minutes writing down every word or phrase that describes what you make, who you make it for, and the problems you solve. Don't filter yourself here.
Say you run a small business selling hand-poured soy candles. Your seed list might include: soy candles, candle making, handmade candles, home fragrance, clean burning candles, small batch candles, cottagecore, cozy home, gift ideas, Etsy sellers, artisan goods, scented candles.
That list is your raw material. You're not done — this is just the input for the next steps.
Step 2 — Use Instagram's Own Search Bar (Seriously)
This is the most underused free tool available, and it's sitting right in the app. Type each seed word into Instagram's search bar and switch to the Tags tab. You'll see the post count for that exact tag, plus a list of related tags Instagram surfaces automatically.
What you're doing here is two things at once: getting post volume data and discovering variations you wouldn't have thought of. For "soy candles" you might discover #soycandlemaker, #soycandlesofinstagram, #soycandleco — each with very different audiences and competition levels.
Record every tag you find along with its post count. Don't decide anything yet — just collect.
Step 3 — Sort Into Three Tiers
This is where the strategy comes together. Once you have a long list with post counts, sort them into three buckets:
- Broad tags (1M+ posts): High competition, massive audiences. Examples: #candles, #homedecor, #handmade. These are long shots for smaller accounts but worth including 2–3 of them per post because if you do rank, the exposure is significant.
- Medium tags (100K–1M posts): The sweet spot for most growing accounts. You have a real shot at Top Posts here if your engagement rate is decent. Examples: #soycandlemaker, #smallbatchcandles, #artisancandles.
- Niche tags (under 100K posts): Lower competition, highly targeted audience. Your content can rank for days here, not minutes. Examples: #handpouredsoycandles, #cottagecorecandle, #cleanburningcandles. These bring in fewer impressions but often better engagement because the people searching these tags are actually looking for exactly what you make.
A healthy hashtag set for a mid-size account (5K–50K followers) usually looks like 3 broad tags, 6–8 medium tags, and 6–8 niche tags — roughly 15–20 total. Going all the way to 30 is fine on Instagram, but don't pad with irrelevant tags just to fill slots.
Step 4 — Competitor Analysis (the Part Most Guides Skip)
Find 5 accounts in your niche that are slightly bigger than you — not mega-influencers, but people doing what you do with maybe 2–5x your following. Click through their recent posts. Look at what hashtags they're using, especially on posts with unusually high engagement relative to their size.
You're not copying them. You're reverse-engineering which tags are actually delivering results in your space right now. Hashtag performance shifts over time — what crushed it in 2022 might be saturated trash today. Competitor analysis gives you a real-time signal that no tool can replicate perfectly.
Make a note of any tags that appear across multiple competitors' high-performing posts. Those are worth prioritizing in your medium and niche tiers.
Step 5 — Validate With Free Tools
A few free tools make this research faster and smarter:
Display Purposes (displaypurposes.com) — Type in a keyword and it generates related hashtags ranked by relevance, with a spam filter that removes tags Instagram has shadowbanned. It's not perfect, but it's a useful cross-reference for expanding your niche tier.
Flick's free plan — The paid plan is robust, but even the limited free version lets you look up individual hashtag metrics including average likes on top posts, which helps you gauge whether your content could realistically compete.
Later's Hashtag Suggestions — If you're already scheduling with Later, their suggestion feature pulls related tags based on your caption text and shows post counts inline. Saves time when you're building sets for recurring content themes.
TikTok's search bar — If you also post on TikTok, search your seed words there too. TikTok's related suggestions sometimes surface niche communities you'd never find on Instagram, and those community names often translate directly into viable Instagram hashtags.
Step 6 — Build Theme-Based Sets, Not One Giant List
Here's a practical shift that makes everything easier: stop treating hashtags as one universal list and start building sets for your content themes. If you post three types of content — product photos, behind-the-scenes making-of, and lifestyle/mood shots — each type deserves its own hashtag set.
Why? Because hashtag relevance is content-specific. A behind-the-scenes video about your candle pouring process should use tags like #candlemaking, #soywaxblend, #makingcandles — process-oriented tags. Your styled flat-lay product shot should lean into #homedecor, #giftsforher, #shelfie. The audience intent is different, and your tags should reflect that.
Build 3–5 theme sets and save them somewhere accessible (a note on your phone, a Notion page, wherever you draft captions). Rotate and refresh them every 6–8 weeks based on performance data.
Step 7 — Read Your Own Analytics Before You Refresh
Instagram Insights shows Impressions from Hashtags as a metric on each post. This number isn't perfect — Instagram has acknowledged it underreports — but it's directional. If a post with a particular set drove noticeably more hashtag impressions than usual, that's a signal worth noting.
More useful: track saves and profile visits alongside hashtag impressions. A high hashtag impression count with zero saves suggests you're reaching people who scrolled past immediately. Low impressions but high saves means your niche tags brought in a small but genuinely interested audience. The second scenario is actually better for long-term algorithmic health.
Use this data to prune tags that consistently underperform and double down on the ones that deliver saves, follows, or DMs.
One Thing That Trips Everyone Up
Shadowbanning is real, and it specifically affects accounts that use the same exact set of hashtags on every single post for months. Instagram's systems interpret this as automated or spam-like behavior. The fix is simple: rotate your sets, vary your niche tags post to post, and never copy-paste the exact same 30 tags verbatim each time.
Also worth knowing: banned hashtags (Instagram has actually restricted some) can tank your overall post reach, not just the reach from that specific tag. Display Purposes filters most of these out, but it's worth doing a manual spot-check on any tag you're not sure about by searching it in the app — if it shows no Top Posts tab, it's likely restricted.
The Honest Bottom Line
Hashtag research is not glamorous work. It's a spreadsheet, a search bar, and about an hour of your time every couple of months. But accounts that do this deliberately outperform accounts that wing it — not because the algorithm rewards effort, but because they end up in front of the right people, who engage genuinely, which compounds over time.
Start with 20 seed words. Build three tiers. Steal intelligently from competitors. Validate with free tools. Build theme sets. Read your analytics. Adjust. Repeat.
That's the whole system. No guessing required.