My son walked around with The Outsiders in his pocket for a week, something I can get him for Christmas that might similarly catch his attention?

My 14 year old son (strong reader) read The Outsiders for class and seemed to be into it. I think the class messages and relatable characters really got him into it. Well, Christmas is a-comin' and we always have a Jólabókaflóðið, so I'd love some suggestions of titles for him. Whatcha got Reddit?