Really? This might be the laziest thing I've read on HN. 30 seconds of Googling (DuckDuckGoing?)
https://www.thehugoawards.org/hugo-history/
https://www.esquire.com/entertainment/books/g39358054/best-s... (and tons of other lists like this)
https://www.goodreads.com/list/show/19341.Best_Science_Ficti... (etc...)
Yes, searching on Amazon might not be the best discovery method anymore, but there are also institutions that curate.