Is there a Product Hunt-style platform for launching books?

I’ve seen quite a few product launch platforms like Product Hunt, where creators can launch their products and the community can upvote and discover them. I’m wondering if there’s something similar specifically for books. where authors can launch their books, readers can discover them, upvote them, comment, and discuss them. Does a platform like this already exist? If you know of one, I’d love to check it out.