Start with high-confidence abuse & healing books, then narrow by subgenre or adjacent topics.
Touching Spirit Bear
Ben Mikaelsen
Boys Without Names
Kashmira Sheth
Good Night, Mr. Tom
Michelle Magorian
Okay for Now
Gary D. Schmidt
Claudia and the Terrible Truth (the Baby-sitters Club #117)
Ann M. Martin
Caprice
Coe Booth
A Method for Magic and Misfortune
Craig Kofi Farmer
The Light Jar
Lisa Thompson
The Fort
Gordon Korman
The Benefits of Being an Octopus
Ann Braden
Shark Teeth
Sherri Winston