Books:
I recommend the novel, Steelheart by Brandon Sanderson.
I recommend the entirety of The Reckoners, the series that Steelheart is in.
Firefight is my favorite book in the series, but it would be weird to recommend the second book in a series, so Steelheart it is.
I'm not a fan of superheroes, but I really like this book. So don't hesitate to read this book just because you don't like superheroes.
It's about evil superheroes which sounds boring, but it's actually really interesting. I don't know, I'm not a critic... It's more like a fantasy book (because it is) than a Marvel movie. Read it.
You can find Steelheart wherever you find books.