Honestly it's better to use an RSS server and then manage the feeds in one single RSS feed so you don't have to shuffle around any kind of local readers. That will make most of them a lot more bearable since their biggest issue is organization. For editing lists of RSS feeds I recommend RSSGuard as it has the best filesystem-like management. Otherwise just use regular expressions on the OPML file

Sockethub (RSS/XMPP/IRC bridge) for Conversations/Cheogram or the Delta/Arcane Chat bots are my personal choice because chronologically bumping the feeds makes sense to me, muting/archiving/custom notifications is easy to manage, as is inviting collaborators.

I actually have invented something better than Google Reader (including the social aspect) but it's kind of a secret rn 🤫