Jerboa - a bit buggy still, and sometimes posts take a while to load, but its features are fantastic.
Connect - I love this app, and I tried to switch to it, but being unable to disable "swipe to upvote" is a dealbreaker for me. (EDIT: turns out it's been updated so I can now disable it! Bless!)
Liftoff - I just switched to this. It's very polished and responsive, and accomodates my preferred way of scrolling and interacting with communities.
Lemmotif - pure minimalist doomscrolling. It doesn't even let you log in to vote, comment, or post. Blazingly fast, and I love it. Uninstalled.