You might try piefed? It’s a fediverse platform so still links/syncs etc with lemmy and everywhere else but the UI is nice and I think it does a lot of the stuff you mention (except for the ama style stuff.) I followed PugJesus here (and am using Piefed right now) and exported all my feeds etc so the switch was relatively painless.

Feel free to reach out if you have any questions etc. I probably won’t be able to help but uhhh, I’ll commiserate?