Ok I'm going with a cult of the new pick and say Bonfire by Krysten Ritter. Especially if you like nior. If you like Jessica Jones and Daredevil, the book seems like a very well-cared for lovechild of the two without superpowers.

I also recommend Heartsick and One Kick by Chelsea Cain, they're both dark but kinda quirky in a way and a part of a series so if you don't like jumping into a series both could be a hassle. They are also both suspense but Cain's voice of quirkiness is there so it is separated from the self-righteously miserable edge most suspense novels tend to have.

Finally is a non-fiction book called Slugfest: Inside the Epic 50 year Battle between Marvel and DC. If you like the business side of fandoms fighting ala WCW vs WWE (F). This is a must read, especially since superhero movies are so popular and mainstream now.