BuyerSpotter

BuyerSpotter is a read-only Chrome extension for finding people who are already asking for what you sell. Add up to 10 phrases like "recommend a bookkeeper" or "alternative to X". BuyerSpotter then checks up to 25 of your Facebook groups, Reddit, X, LinkedIn and Nextdoor on a schedule while Chrome is open. Matches arrive in one inbox, sorted by buying intent, with the original post and the reason each one matched. It never posts or messages for you. You decide whether to reply.

Pricing: 5-day free trial, no card. Then $39/month or $390/year.
Chrome Web Store: https://chromewebstore.google.com/detail/buyerspotter-keyword-aler/idbahpblfahabmnkfmdahpjlnajigkkc