Give some tips about what do you like...
Generally, the books that are considered "classics" have had a good respone throghout the time by a lot of people, so chances are you'll like them.
Just some random suggestions:
Gone girl, really intense thriller (book and film, first book then u can watch film)
The catcher in the rye, salinger even if americans read it in highschool, I think its fore a bit more mature audience.
A farewell to arms, hemingway
1984
Disgrace
easy-reading thrilogies: hunger games, divergent...
kafka's metamorphosis is funnier than what people think
The great Gatsby