I read all the Harry potter, twilight, Ann of green gables, little house on the prairie, and Percy jackson books around that age. I guess some people might think that twilight is a tad bit mature but it all depends on your reading level. There's so many great books out there though so maybe just talk to a worker at a bookstore, i.e indigo, chapters, books a million, and see what they suggest. Or read the synopsis of some books at the bookstore and see what appeals to you.
I would advise The Journal of Curious Letters, Kira Kira, Harry Potter, Percy Jackson Books, Nancy Drew (only the originals), An Autobiography of Santa Clause, To Kill a Mocking Bird, and The Secret Series. I only recommend these because these were some of my favorite books at ten.