Yep, there are a lot for book tracking. Most people don't like Goodreads for anything except book tracking; I've interviewed a ton of readers for my website and haven't found anyone positive about the book suggestions yet...

I think the best for replacing Goodreads book tracking functions are: https://hardcover.app/ https://app.thestorygraph.com/

Story Graph is the lending contender as they are quite popular.

I'd love a tool to help me manage my Kindle books directly. I am sure Amazon makes that near impossible when I looked into it.