Naruto would become more confident. Gojo's power is extremely strong, and having it would make Naruto feel like he could handle almost any situation. He'd also become more strategic as Gojo's power requires a different approach to combat compared to his normal ninja skills.
A possible plot is that with Gojo's power, Naruto is able to see the world in a new way. He can now perceive curses in the ninja world that were previously hidden. This leads to a whole new side - quest where he has to deal with these curses while still maintaining his duties as a ninja. He might also use Gojo's power to teach other ninjas a new way of fighting, changing the ninja combat system.
One idea could be that the Power Rangers are visiting Japan and accidentally stumble upon a villain attack in the MHA universe. They team up with the heroes from MHA. The Rangers could teach the MHA students some of their combat techniques, like the cool martial arts moves they use. And in return, the MHA students could show the Rangers how to use their quirks in creative ways during battles. It would be a great exchange of skills and a chance for some really epic fight scenes.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
Definitely Deku and the Red Ranger. Deku is all about growth and determination, and the Red Ranger is often the leader and a symbol of courage. They could inspire each other in different ways. Deku could learn more about leading from the Red Ranger, and the Red Ranger could be inspired by Deku's never - give - up attitude towards getting stronger.
Batman doesn't have powers like the characters in MHA, but his skills would still be extremely valuable. He could be seen as a sort of 'Quirkless' hero, much like Izuku was initially. His physical conditioning, martial arts mastery, and detective skills would set him apart. He might be able to outwit many of the villains using his intelligence.