Literal.club is probably my favourite. Cleanest interface of anything I’ve tried, and a really great API to use if you’re a developer. It also recommends profiles with a similar taste to yours, which can be helpful for discovering new books.

Edit: I looked into Bookwyrm and it turns out you can get book lists (e.g. currently reading) as JSON. For example, bookwyrm.social/user/mouse/books/reading.json. For anyone who wants an API, this might be enough.

Mobilism is decent.

I don't think anyone outside of QxR actually knows (I can't find an official statement anywhere), but all the comments on recent 1337x releases are saying "RIP"

I don’t think anyone outside of QxR actually knows (I can’t find an official statement anywhere), but all the comments on recent 1337x releases are saying “RIP”