Hello! I have a few book recommendations for you. 
- All of Lisa Gardner’s books are amazing! (thriller)
- Ursula K. Le Guin is another author, all of whose books are magnificent (We can say that she usually wrote dystopia and sci-fi as a genre.)
- Planet of the Apes by Pierre Boulle. (My favorite sci-fi book!)
- Animal Farm and 1984 by George Orwell (dystopia)