Ask HN: Alternatives to Goodreads?

I find Goodreads very useful, especially following avid readers to get good book suggestions. I also reading the reviews and comments. One annoying thing is how to manage your bookshelf. I don’t know how, but it feels like it could be done better. Some ideas:

1. Rank what to read next 2. Opt out of the strict top level shelves/categories: Want to read, Read, Currently reading. I want to make my own high-level shelves. 3. It is bit annoying managing shelves in Kindle and on Goodreads. I have not found a way to keep things synced.

I think blending reviews/samples/shelving/prioritizing/note taking/buying the book/etc. could be done differently. Any ideas to expand on?