John Murdoch
Senior Member
Iron Man (Bleeding Edge) - distraction for Clark.
Dr. Strange - can trap Supes in the mirror dimension, turn back time on him, pull some of the stuff he did against Thanos to temporarily incapacitate Supes, but is KO'ed if Superman gets a hold of him even briefly.
Namor - Could help (maybe) by teaming up on Supes, but Clark no-sold Steppenwolf's axe to his shoulder, so I doubt the vibranium spear or anything Namor can do would even phase Clark.
Black Bolt - would have to have Supes standing in front of him and shout at him, which could mess up Clark, but Clark could just speedblitz him.
Black Panther - distraction for Clark.
Captain Marvel - biggest question mark. She can restart a sun, fly through black holes, and is one of two characters in Endgame, the other being Scarlet Witch, that had Thanos dead to rights by themselves. On other hand, Clark would've outright destroyed the Kree guard in CM1 and Dar-Benn from the Marvels with utter ease and would've beaten Thanos sooner or later. Overall superior feats for CM vs. massively better combat speed and great physicals in his own right for Clark.
Ikaris - diet Superman helps out a ton, as he went up against a speedster with legit combat fighting techniques in Makkari. How do the deviants match up against other MCU heroes though? They only fought the Eternals, and gave them, including Ikaris, all they wanted and more, killing Ajak and nearly killing Thena and Ikaris.
If Strange can launch an attack at Supes to hold him still long enough for CM and Ikaris to go to work, I give it to team MCU, but very few hero movie characters have the combination of powerset and combat capability that DCEU Clark has, especially taking into account that Supergirl, Keaton Batman, and two Flashes couldn't beat Zod and co. with near-infinite tries, whereas Clark took them down in one go.