The Classical Christian homeschooling support loop has this extensive inventory of wonderful classic reads on their website. The books are categorized according to anthologies, holiday books, literature and advanced literature, and are broken down into primary, elementary, and advanced reading levels. Be sure to scroll down and read the suggestions for using the list. This is an amazing resource! I printed out a copy of this awhile back and constantly refer to it when looking for good books for my family. I think you’ll find it useful too.
Related website: http://www.classical-homeschooling.org/celoop/1000.html