Start with high-confidence runaway stories books, then narrow by subgenre or adjacent topics.
Losers Bracket
Chris Crutcher
The Distance Between Lost and Found
Kathryn Holmes
Notes From My Captivity
Kathy Parks
Better the Devil
Erik J. Brown
Boyfriends, Burritos and an Ocean of Trouble
Nancy N. Rue
Split
Swati Avasthi
A Friend at Midnight
Caroline B. Cooney
Want to Go Private?
Sarah Darer Littman
If You Find Me
Emily Murdoch, Tai Sammons
Out of Reach
Carrie Arcos
No Place
Todd Strasser
If Only
Richard Paul Evans
Sun Don't Shine
Crissa-Jean Chappell
