Best Subreddits to Find Customers for Your SaaS
September 21, 2026 · Threadly Blog
The best subreddits for finding customers are the ones where your buyers already ask for help, not the ones with the most members. This guide groups the usual candidates for SaaS founders by audience, says what each community tends to want, and shows how to check a subreddit's rules in two minutes before you comment.
A note on accuracy: subreddit rules change, and Reddit does not let us read them automatically, so the last column below describes each community's general reputation as of September 2026, not its current rule text. Read the sidebar rules of any community before you post.
How to judge a subreddit
- Audience fit. Do the people posting look like your customers, or like other founders? A founders' community is great for feedback and poor for finding buyers of a product for dentists.
- Activity. Are there new questions every day, and do they get answers? A large but quiet subreddit is worth less than a small, busy one.
- Moderator strictness. Communities that remove anything promotional are still fine for answering questions, but not for mentioning your product.
- Tolerance for product mentions. Some allow them with disclosure, some only in a weekly thread, some never.
Founders and startups
The easiest place to get feedback, and a reasonable place to find customers if you sell to other founders.
| Subreddit | Who is there | Best post types | Approach to promotion (general tendency) |
|---|---|---|---|
| r/SaaS | SaaS founders and operators | Questions, lessons learned, feedback requests | Some product mentions are usually tolerated with disclosure; check the current rule |
| r/startups | Early-stage founders | Advice questions, lessons, feedback threads | Generally strict; promotion tends to be confined to designated threads |
| r/Entrepreneur | Broad founder and small-business audience | Advice questions, stories | Generally strict on promoting your own company; answer only |
| r/indiehackers | Bootstrapped and solo builders | Build-in-public updates, feedback requests | Generally open to sharing what you built when framed as a story or a request for feedback |
| r/microsaas | Small, solo-run software products | Launch stories, tech and pricing discussion | Generally more open to product sharing; bare link drops are unwelcome |
| r/SideProject | People showing off things they built | Project showcases, demo feedback | Generally welcoming to real projects; expect to show a working product |
Marketing and growth
Big audiences and often the strictest moderators. Useful for answering questions and building a reputation, less so for anything that looks like a pitch.
| Subreddit | Who is there | Best post types | Approach to promotion (general tendency) |
|---|---|---|---|
| r/marketing | Marketing professionals | Discussion, how-to questions, case studies | Generally strict; treat it as answer-only |
| r/digital_marketing | Digital and performance marketers | Tactics, tool questions | Generally strict on services and self-promotion |
| r/SEO | SEO practitioners and site owners | Technical questions, tool discussions | Generally strict on tool drops and links; basic questions may be redirected to a pinned thread |
Sales, agencies and small business
| Subreddit | Who is there | Best post types | Approach to promotion (general tendency) |
|---|---|---|---|
| r/sales | Sales professionals | Tactics, tooling opinions | Generally strict; reveal your affiliation only if asked or clearly allowed |
| r/agency | People who run or work at agencies | Operations, client management, tools | Check the rules first; agency communities are often wary of vendors |
| r/smallbusiness | Small business owners across industries | Practical problems, tool recommendations | Generally limited to designated promotion threads; replies that only help are safest |
Add the subreddits your own customers use
The lists above are where founders gather. Your customers may not be founders. A product for dentists, wedding photographers or property managers will usually find better leads in a small community of exactly those people than in any big general subreddit, because the audience fit is so much tighter. Niche communities are also often less crowded with people selling the same thing.
How to find subreddits for your own niche
- Write down three or four problems your product solves, in the words a customer would use (see Reddit buying-intent phrases).
- Search Reddit for those phrases and note which subreddits the results come from.
- Search Google for
site:reddit.complus the same phrase and do the same. - Open the communities that appear more than once and check that people there ask questions and get answers.
Reading a subreddit's rules in two minutes
- Open the community, then its rules in the sidebar or the About tab.
- Find any rule about self-promotion, links, or recommendations, and read it twice.
- Look for a pinned post or megathread for sharing projects.
- Skim the top posts of the month to see what actually survives.
- Check the requirements to comment: account age, karma, flair.
What to do first in a new subreddit
Do not mention your product in your first week. Read for a few days, answer a handful of questions you can genuinely help with, and get a feel for the tone. Then mention your product only where it fits a question and the rules allow it. Our guide to promoting your SaaS on Reddit without a ban covers the reply itself.
Watching many subreddits without living in them
Once you have your list, the work is checking each one for new questions. Threadly scans Reddit once a day for posts matching the phrases you use, has Claude judge which are genuine leads, and drafts replies you approve before anything is posted. See how to find leads on Reddit for the full workflow.
Keep reading
- How to find leads on Reddit: a step-by-step guide
- How to promote your SaaS on Reddit without a ban
- How to monitor Reddit for keywords
- Best Reddit lead generation tools, compared
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