Too bad no one makes 4-figure sets (or any at all) of various super-heroes, both DC and Marvel. If licensing is a problem, they could design generic characters. Dragon already has a contract with Disney to make 1/24 and 1/9 figures. Vintage Captain America fighting Nazis?

now i dont remember the name but few years a go was a company who made them in 75mm,very very nice sculptures but bad cast and how you can imagine the company went bankrupt

....errata corrige..

they just stopped producing in 75mm and got to the small scale for gamers in 35mm,but they have only the DC license,they probably lost the Marvel license but if you search you can still fuond them

https://www.knightmodels.com/

Oh, there are plenty in 54mm (Andrea Models) and 75mm (Knight Models), and even larger (Dragon Models). The point of having them in a handy 1/35 scale is you could use them with limitless amounts of other 1/35 "bad guys", etc. ie; a 1/35 Superman lifting an enemy tank...a 1/35 Captain America beating the crap out of a Hydra-Nazi (or Hitler), etc., etc., ...in other words superheroes winning diorama wars.