My 4 year old DS can read at a 1st grade level and we are struggling with which books to provide. He loves reading all the early readers he can get his hands on but I'd really rather he not read the junky books based on movies, TV shows, etc. More classic books would be preferred! I also want to balance him feeling like he's succeeding and can make it through a book while continuing to be challenged. We are planning to use a combination of Charlotte Mason and Classical Ed with him.
Besides the Little Bear books (getting those from the library), are there any others that are of higher quality than the standard early readers that are out there now?