Chris Evans had a similar issue when they were doing additional shooting for the Avengers.
THAT WASNT HIS DECISION.
MISSION IMPOSSIBLE
WOULDNT LET HIM SHAVE IT.
It's why he's covering his face in the shawarma scene.
Gunn said it would take inspiration from the comic series All Star SupermanI'm really starting to think we're getting a combination of these two movies
All-Star Superman - Wikipedia
en.wikipedia.org
Apparently they're looking at Alex or Bill.I'd go with Gustaf, aka Floki da gawd. He looks more the part. Though it's extremely hard to argue against Alex after his turn as Lukas Mattson in Succesion. That's damn near Lex already. Can't go wrong with either.
Henry looked pretty similar to him when he did Immortals, which was two years before MoS