I have not found very many, but here are the ones I love:
All the Sarah books by Esther and Jerry Hicks. They are chapter books geared for older children, but my 4-y-o son LOVES them, too! I get a lot out of them as well. We are on our second reading of them!
Both the Wayne Dyer books for children (they are geared to the younger ages like 3-6).
Pollyanna (same notes as Sarah except we've read Pollyanna at least 3 times already).
Lily's Big Day by Kevin Henkes
Blueberries for Sal by Robert McCloskey