@seanbala I'd recommend Lemmy. I've found it overall easier to use than when I tried kbin, and the many apps for mobile and frontends for the website make it really nice to use in a way you like.
If you're signing up for Lemmy, I'd say don't sign up on these instances (for various reasons)
lemmy.ml
lemmygrad.ml
hexbear.net
beehaw.org
Kbin having microblogging features seems interesting, but you already have a mastodon account, so I guess (?) It wouldn't be too useful for you. Maybe your experience will be different from mine tho!