I know good classic ones. Not anything from this century, because: capitalism.
Edit here is some amazing ones:
The Count of Monte Cristo — Alexandre Dumas
Anything not just: Las Miserables from Victor Hugo
War and Peace — Leo Tolstoy (this technically was published as several books) it is really fun!
The Brothers Karamazov — Fyodor Dostoevsky
The Red and the Black — Stendhal I do love this tho it has a second one.
The Master and Margarita — Mikhail Bulgakov
Enjoy!