EnigmaticClarity
Studious
Marvel Select Cap has the best shield set up I can think of. The shield consists of a small disc that can be worn on the shoulders with straps, and an alternate small disc that can be strapped to the arm/held by a grip hand. Those two set ups can be plugged onto either his round shield or his original triangular shield.
Forgot about that one since I don't own him, but I saw reviews demonstrating this design and I agree that it does seem like the best so far.