I love #ATOM token and @atomcollector records community. The platform has a good system for musicians to showcase their music by using ATOM to buy credits, there is great music on the site, and the ACR fam are an awesome bunch of lads.
#Jahm token seems to be useful too and the community seems quite active and @luciannagy is working on his own project with #lnbt token. I believe he's still developing the concept. Those are the ones I've read about.