Here are some of my favorite Teen Lit books:
Daughter of Smoke and Bone by Laini Taylor
Unwind by Neal Shusterman
In a Heartbeat by Loretta Ellsworth
A Dog's Purpose by W. Bruce Cameron
The Book Thief by Markus Zusak
Hunger Games Trilogy by Suzanne Collins
Dairy Queen by Catherine Gilbert Murdock
Ender's Game by Orson Scott Card
Hold me Closer Necromancer by Lish McBride
Miss Peregrine's Home for Peculiar Children by Ransom Riggs