Free tool
Subreddit finder
Type what you sell, or the niche you work in. You get the subreddits where people with that problem ask for help, the founder communities worth knowing, and a Reddit search link for each one. Free, no signup.
How to find subreddits for your product
- Describe the job, not the brand. "Invoicing for freelancers" finds more than your product name does.
- Start with Where buyers ask. Those are people who have the problem.
- Open Newest posts on three or four of them. If nobody asked for anything close to what you do this month, move on.
- Read the rules before you post. Plenty of subreddits ban links or self-promotion outright, or keep it to one weekly thread.
- Answer the question they asked. Mention what you built only if it helps, and say that you built it.
Buyer subreddits and founder subreddits are different rooms
r/SaaS and r/startups are full of people building things. They are good for feedback, a launch note, or a question about pricing. They are not usually where your customers are, unless you sell to founders.
Your customers are in the subreddit for their work: r/sales, r/freelance, r/smallbusiness, r/realtors. They post when something is broken, slow or too expensive. That is the thread worth answering, so the finder lists those first.
Starter subreddits by niche
If you just want a place to start, these come up most often in the finder.
Founders and SaaS
r/SaaS, r/startups, r/indiehackers, r/SideProject, r/microsaas, r/EntrepreneurRideAlong
Sales and CRM
Marketing and SEO
r/marketing, r/SEO, r/PPC, r/content_marketing, r/Emailmarketing, r/socialmedia
Ecommerce
r/ecommerce, r/shopify, r/EtsySellers, r/AmazonSeller, r/dropship
Developers and devtools
r/webdev, r/ExperiencedDevs, r/devops, r/selfhosted, r/iOSProgramming
AI and automation
r/ChatGPT, r/LocalLLaMA, r/AI_Agents, r/automation, r/n8n, r/nocode
Freelancers and agencies
r/freelance, r/agency, r/consulting, r/Upwork, r/copywriting
Local and service businesses
r/smallbusiness, r/sweatystartup, r/restaurateur, r/realtors, r/HVAC
How this list is made
The finder matches your words against a hand-picked list of 162 subreddits, each tagged with who is in it and what they post about. It runs in your browser. It does not call Reddit's API, it does not scrape Reddit, and it does not store what you type.
It does not show member counts either. They change, and a big subreddit is not always a useful one. The newest posts tell you more. For anything the list misses, the More communities link runs Reddit's own community search.
After you find them
Quote a buyer phrase and search inside each subreddit. The buyer-phrase keyword list has starters by niche. Before you comment a lot in a new place, run through the Reddit account-health checklist.
For the full routine, read how to get your first customers from Reddit and the free Reddit lead-gen stack. When you want the search done for you each morning, install Founder CRM. It runs in the Chrome you already use and never posts for you.
Questions founders ask
- Is this subreddit finder free?
- Yes. No account and no email. It runs in your browser.
- Does it scrape Reddit?
- No. It matches your words against a curated list of subreddits, then links to Reddit's own search. Reddit shows you the posts.
- Why are there no member counts?
- They change, and size is a weak signal. Open the newest posts and check whether anyone asked for something you can help with.
- Can I post my product in these subreddits?
- That depends on each subreddit. Many allow it only in a weekly thread, or not at all. Open the Rules link before you post.
- Does Founder CRM watch these subreddits for me?
- No. There is no hosted monitor and no alerts. When you run a flow, it searches in your own Chrome and leaves you a list. You write and send every reply.
Turn these threads into your 15-minute daily lead feed
Pick the subreddits that fit. A Founder CRM flow searches them in your own Chrome, keeps the people who asked for something like yours, and leaves you a short list. AI finds. You write and send every reply.