Start with high-confidence depression & mental health books, then narrow by subgenre or adjacent topics.
Fifty-four Things Wrong With Gwendolyn Rogers
Caela Carter
Mayday
Karen Harrington
Dr. Bird's Advice for Sad Poets
Evan Roskos
The Year My Life Went Down the Toilet
Jake Maia Arlow
And Then, Boom!
Lisa Fipps
Light Enough to Float
Lauren Seal
The Great Cool Ranch Dorito in the Sky
Josh Galarza
Taking Up Space
Alyson Gerber
Violets Are Blue
Barbara Dee
Louder Than Hunger
John Schu
Someone Else's Shoes
Ellen Wittlinger
Not Nothing
Gayle Forman
Starfish