Are superhero novels (not graphic novels or comic books) in any way popular? Like, are there any popular superhero novels?
Sanderson, Reckoners.
Peter Clines had a series of superhero zombie novels, really didn't like the first one very much.
Austin Grossman had a book that sounded ok, Soon I Will Be Invincible, didn't read it, I'd imagine it's solid mediocre shit.
New book came out to solid buzz, The Regional Office Is Under Attack!, think it's by Manuel Gonzalez.