From McCarthy ? I'd start with his Border Trilogy which is 3 books sold together. Or just All The Pretty Horses if you want to dip your toes to see if you like his writing.

I've also enjoyed Elmore Leonard quite a bit recently. More pulpy I suppose, but well written. Out of Sight is a good one with a somewhat faithful movie version as well.

Normal People by Sally Rooney is something I read recently that I liked.

Unless by literature you actually mean classic literature, in which case I'm really not qualified to recommend anything :-)

No Country for Old Men is the most accessible. Blood Meridian is harder, but very good.