i'm not sure if you consider more recent classics but as a lit major here are some of my faves that could be considered classics: wuthering heights, pride and prejudice, song of solomon, the crying of lot 49, slaughterhouse five, 1984, hamlet, macbeth, and it's not a novel but the collected short stories of ernest hemingway... many of them are bangers. i'm not a hemingway novel fan but his short stories are often so good