Look up the lexile levels of books, put lots on hold at the library and enjoy your child's enthusiasm. http://www.hoagiesgifted.org/reading_levels.htm is a great source of help. Look up the lexile levels of books. My child enjoyed reading through an entire series of books, say all Harry Potter books or the entire series of Unfortunate Events. Then we would see the movie (s). Have you read Charlotte's Web, tried a Shakespeare play or some poetry? My children loved all sorts of myths and folk tales from all cultures. Folk tales from Russia, Turkey, China and Japan were their favorites.
Have fun and good luck!