Find the subreddits where your buyers sit

Yes. You can run as many searches as you like without an account and without a card, and every result shows the same risk level and rules summary a paying user sees. A paid Alrebro plan adds a daily plan of the buyer threads in those communities, comment angles, and alerts — but the finder itself will always cost nothing.

No. The finder works without signing in, and nothing you type is tied to an account. An account is only needed for the full product: daily plans that watch your communities, buyer-thread alerts, and rule-checked drafts for the threads worth answering. If you only want to check a few subreddits once, the free tool is enough.

Matches come from two places. Alrebro's hand-checked subreddit catalog holds communities that have been checked by hand, so their rules and risk levels are known. AI suggestions fill the gaps for communities the catalog does not cover yet. Every result says which source it came from: AI suggestions are labelled as AI-generated, never include member counts, and are not a live check on Reddit — verify the live rules on Reddit before you post.

Safe means the community's rules allow the kind of post you described. Careful means you can post only if you follow specific rules — read the summary on the card first. Dangerous means your post is likely to be removed or your account flagged. Unknown means the rules for that community are not known yet.