This is awesome, and just what is needed to filter out the chaos of the global feed. Is there an API endpoint for this?
I'm working on an 'algorithmic feed' problem. You can check out https://nostr.band homepage for trending urls, hashtags and people. Trending posts coming soon. These lists are free of several kinds of spam that I've seen on nostr up until now (not based on simple easily-inflatable like/reply/follower counts). Is this something you're looking for? What other kinds of 'tops' would you consider useful?
Discussion
There is no public API, which one would you like to have? Search, or trending, anything else? I'm trying to add keyword search into nostr protocol itself atm, so maybe this part will be available soon.