Start with high-confidence superheroes books, then narrow by subgenre or adjacent topics.
Superman Classic: Superman Versus Bizarro
Chris Strathearn, Inc. MADA Design
Joshua Dread
Lee Bacon
Steelheart
Brandon Sanderson
Wonder Woman: Warbringer
Mozhan Marnò, Leigh Bardugo
Pizza Patrol! (rise of the Teenage Mutant Ninja Turtles)
Christy Webster
Actually Super
Adi Alsaid
I Am a Super Girl!: an Acorn Book (princess Truly #1)
Kelly Greenawalt
Escape From the Clay City (future Hero #3)
Remi Blackwood
Marv and the Alien Invasion
Alex Falase-Koya
Boy 2.0
Tracey Baptiste
Dreadnought
April Daniels
Not Your Backup
C.B. Lee
DC Super Heroes: the Power of Kindness
Julie Merberg
