I never really cottoned to Mastodon, possibly for the same reasons I never took to Twitter. Perhaps I'm just too much of a chatterbox to accept their post length limitations. 😆
Bookwyrm is outstanding for book reviews, and it allowed me to import the CSV of my reviews from GoodReads. If Mastodon can do that, I wasn't aware of it.
Paper.wf was recommended to me as a Fediverse boxing site. Mastodon is too short-form for me. Beehaw doesn't seem to have a personal blog as an option. BookWyrm, oddly enough, does - and I just discovered that I can see my BookWyrm blog (called "Direct Messages" there, which really doesn't make sense) from kbin. I have no idea how that works, since my accounts are separate.
Paper.wf is elegant, but seemingly skimpy on features, though. Currently I can't figure out how to find other blogs there or follow them, and as far as I can tell there's no way for anybody to comment on blog entries there. If anyone wants to check out my blog there, here it is. Maybe you can tell me how to comment on entries!