A quick glance suggested that the lem package is a good option but I’ve been struggling to get it to work. When I launch it I put the username as @steeznson:lemmy.world but this returns a 404.
Can’t find any docs after a quick google search and also struggling to track anything down in the emacs built in docs.
Lastly, unrelated, I wanted to shout out the emacs client for mastodon. It’s great!
I haven’t tried Lem in Emacs (yet) but you could always convert your favorite communities to an RSS feed and then browse that with Elfeed. That is what I did with Reddit. You can covert a Lemmy feed to RSS with these directions https://openrss.org/blog/lemmy-rss-feeds