Source: gamesradar.com

4. Spider-Man

Admittedly, Peter here was offered a spot with the Avengers, but he turned it down (alongside a terrible costume that he's apparently gonna wear for Infinity War, regardless).

But there definitely should be a place in the new Avengers line-up for Peter Parker, the spectacular Spider-Man, and not just a spot in the part-time honorary crew. Spider-Man is such an excellent character, and Tom Holland is perfect in the role. Plus, as the fresh-faced kid, he has a unique perspective on superheroing that would be a welcome addition to The Avengers. And for a new generation of Avengers, a new generation of heroes needs to rise up and take their rightful places at the forefront.

Although it took him a long time, Marvel Comics’ Spider-Man finally did take up a post as part of the initial lineup of the New Avengers (it was Daredevil who turned down a spot on the team that time), and has served regularly on some iteration of the team since. He was on the New Avengers, the regular ol' Avengers, the Avengers World program, and the Avengers Unity Squad.

He truly is a twenty-first century Avenger.