For your rewrite of Superman’s Hero Academia, there should be like references to Superman movies and tv shows. Here’s a scene of Clark meeting Izuku for the first time. This scene is inspired by the James Gunn’s Supergirl clip of Kara meeting Clark.
Clark: "Hey, you okay?"
(Izuku looks up from the ground, rubbing his nose, blinking up at the broader, bespectacled boy who just offered a hand.)
Clark: "Hi there."
Izuku: (Scrambles backward slightly, bowing his head quickly while stuttering in rapid-fire, nervous Japanese) "Ah! G-Gomen'nasai! Daijobu desu! Ano... Kimi wa...?"
Clark: (Rubbing the back of his neck, blushing slightly) "Oh, I’m sorry. I don’t. Uh, I don’t, um. Haha, I don’t speak Japanese. I I didn’t ever… Shoot. I I wasn’t raised here, so. I wasn’t raised here! Why am I talking louder? Uh, let me help you.”
(Clark reaches down, gripping Izuku’s hand. He applies less than a fraction of a percent of his strength, carefully lifting the smaller boy back to his feet as if he weighs absolutely nothing at all.)
Izuku: (Dusts off his uniform, takes a deep breath, and nervously switches languages) "Ah! Thank you very much! I am... okay!"
Clark: (His eyes widening behind his round lenses) "Oh, you speak English."
Izuku: "Yes! I study all of All Might's West Coast interviews! His grammar is very distinct!" (Izuku replies, his eyes shining with standard fanboy intensity, completely surprising Clark with how fluid his pronunciation is for a local teenager.)