I haven't come across a list of this type, but Nancy Pearl's Book Crush is a great resource--she provides a narrative intro to books for different ages and interests, and we've been using it extensively to locate new books for my readerly but sensitive 8 year old. The Beverly Cleary books are great for this age (Ramona, Beezus, and other series, as well as a number of stand-alone books). We've also had good luck with "old" books--Mallory Towers, and other boarding school series (Chalet School,St Clare's), with classics like The Phantom Tollbooth, and with realistic fiction that doesn't dwell on social problems or dysfunction. The lists of Newbery and Caldecott winners are also useful--http://www.ala.org/ala/mgrps/divs/alsc/awardsgrants/bookmedia/newberymedal/newberyhonors/newberymedal.cfm--and the older books tend to have fewer supernatural elements.
