Farcaster

is there anyway to see the most popular/active casters per channel?

Yes! Check out the top casters in each channel on their leaderboard.

/ethereum foundation | opinions are my own but more than likely they come from Vitalik's blog paragraph.xyz/@chaskin

Yes! Check out the top casters in each channel on their leaderboard.  https://cura.network/?t=communities

community curation powered by openrank
Web: https://cura.network
ios: https://apps.apple.com/us/app/cura-by-openrank/id6741865443

A sufficiently decentralized social network. farcaster.xyz

I don't think @farcaster has added that feature yet. It would be a good one