I use Netflix for rental, and they purport to have a “movies you’ll love” section for people who have rated the films they have rented. Of all the movies on the list, I have either already seen them, or it’s very hit-or-miss how much I really like them.
It’s next to impossible to find another source that sees the subjective nature of movies the same way I do. If I see a preview that piques my interest, I’ll rent the film. As to whether I like it or not is my decision to make after I view it, not because someone else says “you’ll love it”.