Classic book suggestions?

I’ve looked into the “booktok” genre, and some of them are okay, but I’d say 90% of the books I find are not my reading style. I read the first book of a series sometime last year, and it wasn’t bad, but when I got the second book recently, I got tired of it very quickly. I’m looking more into some classic books, or just quality books that aren’t over popularized. Any ideas?

by st4rsi