Show HN: I collected 70k online communities – semantic search to find your niche

I built a social listening agent (yes, like everyone and their grandma). along the way though I realized one of the most useful parts was just finding the right communities. so I started saving them and now i have ~70k.

then I added semantic search so you can find communities by meaning. the dataset grows as people use the platform.

how it works

- free accounts: semantic search the already saved 70k communities - paid accounts: search realtime first (keyword searches from the sources) and then run semantic search over the updated communities dataset

I also put together an agent that given a website finds relevant communities for it. example: https://www.pluggo.ai/sites/bloodtrack_au

right now it covers:

- subreddits - x communities - linkedin groups - facebook groups - discord servers - mastodon servers

next, I'd love to figure out a way to add slack workspaces but I haven't figured out a good way besides a crawler that goes around to find slack invite links? if you know a reliable source, I’m all ears

any suggestions for what other sources I should add?