How to Find the Subreddits Where Your Buyers Ask

To find subreddits for your product, work backwards from the questions your buyers already ask. Search those questions, note which communities the threads live in, then check each community for four things: what it says it is about, its rules, whether it is active, and what it allows about self-promotion. A short list of communities that pass all four is worth more than a long list of big ones that will remove your post.

Start from the question, not the topic

Most people start by searching their category name, like "CRM" or "project management". That finds communities about the category, which are often full of people who build or sell those tools. Your buyers rarely talk like that. They describe a problem.

Write down the questions a buyer types before they know your product exists. Mix three kinds:

Problem questions: "how do I stop chasing clients for late invoices"
Comparison questions: "alternatives to the tool they use now" or "is the tool worth it"
Recommendation questions: "what do you use for invoicing as a freelancer"

Use the buyer's words, not your marketing words. If support tickets or sales calls are available, lift phrases straight from them.

Search for the questions buyers ask

Run each question through a search engine limited to Reddit, for example site:reddit.com late invoices freelancer. Google documents that the site: operator lets you request results from a particular domain. The same page also warns:

“The list of URLs returned is not always exhaustive.”

So treat the results as a sample, not a census, and repeat the same phrases in Reddit's own search too.

For every relevant thread, record a few columns in a plain spreadsheet:

The subreddit name
The date of the thread
Whether the question got real answers
Whether people recommended specific products, and how the community reacted to that

After a few dozen threads, patterns show up. The subreddits that appear again and again, across different questions, are your candidates. Small niche communities that show up even twice are worth keeping, because the people there match your buyer closely.

Read the description and the rules

Reddit has two layers of rules. As of 2026-10-16, the Reddit Rules describe sitewide rules enforced by Reddit's admins, sitting below the rules each community sets, and ask:

“Please abide by the rules of communities in which you participate and do not interfere with those in which you are not a member.”

The Reddit User Agreement (Section 8) lets moderators create and enforce their own rules, as long as those rules do not conflict with Reddit's terms. The Moderator Code of Conduct (Rule 2) asks moderators for "a clear and concise description of the topic(s) discussed by your community" and for rules "that explicitly outline your expectations for members of your community."

That tells you where to look. For each candidate, read the description, the rules, and any pinned posts or wiki, and check:

Is your buyer's problem actually on topic, or only close to it?
Are there required post types, flairs, or weekly threads for certain kinds of posts?
Is there an FAQ that already answers the question you were hoping to answer?
If the community is about a brand, is it marked official or unofficial? The Moderator Code of Conduct asks moderators to say so.

Check whether the community is alive

None of the Reddit policy pages above sets an activity threshold, and member count tells you little on its own. Look at behaviour instead:

Sort by new. Are there posts from this week?
Do questions like your buyers' get answered by people with experience, or do they sit unanswered?
Do moderators visibly act: removal notes, pinned announcements, rules that have been updated?

The last point matters to you as much as to members. Rule 4 of the Moderator Code of Conduct says "it is important for communities to be actively and consistently moderated" and adds: "Camping or sitting on a community is discouraged." A well-moderated community is one where a useful, honest answer gets read and a spammy one gets removed. That is the environment you want.

Check what it allows about self-promotion

Start with the sitewide baseline. As of 2026-10-16, Rule 2 of the Reddit Rules says:

“Participate authentically in communities where you have a personal interest”

and Rule 5 says:

“do not intentionally mislead others or impersonate an individual or entity in a deceptive manner.”

Then read the community's own rules on promotion. Some ban links to products, some allow them only in a designated thread, some require you to say you work on the product, and some ban vendors outright. When the sitewide and community rules differ, follow the stricter one. If a rule is unclear, message the moderators and ask before you post.

A few things are off the table everywhere on Reddit, as of 2026-10-16:

Do not offer moderators anything for approving or pinning your post. The User Agreement says moderators may not perform moderation actions in return for compensation, and Rule 5 of the Moderator Code of Conduct lists "offering to pin posts for a fee" as an example.
Use your own account. The User Agreement says: “You will not license, sell, or transfer your Account without our prior written approval.”
Do not pose as a customer or a stranger. Rule 5 asks you not to intentionally mislead others.

In the US, 16 CFR 255.5, the FTC section on disclosure of material connections, says that when a connection between an endorser and the seller is not reasonably expected by the audience, it "must be disclosed clearly and conspicuously." The simple habit: say "I work on this" in the comment itself.

This is not legal advice. It summarises public policy pages as of 2026-10-16; read the linked pages for the full text.

The same method outside Reddit

The four checks work for forums, Q&A sites, Discord and Slack groups, and niche boards. Search the questions with site: on that domain where it is public, read the guidelines page, check recent activity, and find the promotion rule. Two examples, as of 2026-10-16:

Stack Overflow's "How to not be a spammer" page says:

“if you mention your product, website, etc. in your question or answer (or any other contribution to the site), you must disclose your affiliation in your post.”

The Hacker News guidelines say:

“It's ok to post your own stuff part of the time, but the primary use of the site should be for curiosity.”

Private groups often have no public rules page. Read the pinned messages, and if promotion is not addressed, ask an admin first. Wherever you end up, keep your shortlist small enough that you can read every new question in it, and answer the ones where you can genuinely help.

Agent Agency is software that learns your product from a link and runs AI agents that promote it in online communities.