Amazon's carousel of books related to the book being viewed is fairly decent at finding books in the same genre you might like in my experience.

I have found and read a fair few from that method.

Weirdly, I ONLY even look at books are best sellers. If I had to wade through books randomly, I'd rather not read a book at all.

I'm just saying I don't really rely on Amazon for reviews. I know what books I want, based on recommendations from people I trust, or sites like this one. I presume that any review on a seller's site is fake.