Start with high-confidence native american ya books, then narrow by subgenre or adjacent topics.
The Night Watchman
Louise Erdrich
Rez Ball
Byron Graves
The Paranormal Ranger
Stanley Milford Jr.
The Tao of Raven
Ernestine Hayes, Erin Tripp
Black Star, Bright Dawn
Scott O'Dell, Scott O'Dell
Walking in Two Worlds
Joelle Peters, Wab Kinew
Black Elk Speaks
John G. Neihardt, Philip J. Deloria
The Education of Little Tree
Forrest Carter, Rennard Strickland
Good Indian
B.M. Bower
Indiginerds
Alina Pete, Kameron White
A Snake Falls to Earth
Darcie Little Badger
Where Wolves Don't Die
Anton Treuer
Slash
Jeannette Armstrong
Ricochet River
Robin Cody
Laughing Boy
Oliver La Farge