His friends like Ochaco could help. She might use her zero - gravity ability to assist in handling heavy parts during the construction. Also, Iida could be there to keep things organized and on schedule with his strict sense of order.
All Might could be a great help. He could provide Izuku with some valuable advice based on his vast experience. Even if he doesn't have direct knowledge about spaceship building, his wisdom and leadership skills could be useful. And maybe some of the pro - heroes who are good at engineering or technology would chip in too.
Well, perhaps Izuku starts by gathering rare materials for the spaceship. He might use his intelligence and unique skills he has developed. Maybe he's inspired by some hero who has space - related abilities. He could face challenges like getting the right technology or dealing with people who don't believe in his project.
One could be All Might. Even if Izuku leaves Japan, All Might might still be in contact with him, guiding him from afar. Another could be Bakugo. Their relationship is complex, and Bakugo might have some sort of reaction to Izuku leaving, perhaps feeling a sense of rivalry still and trying to prove he can be a great hero in Japan while Izuku is away.
All Might could also be a potential hero to save Izuku. He has a strong bond with Izuku and his presence alone could intimidate Overhaul. He would use his experience and power to rescue Izuku from the dangerous situation.
His classmates like Bakugo could be a main character. Bakugo might be one of the first to notice the strange changes in Izuku and could be both scared and angry about it. He might try to confront Izuku, which could lead to some intense scenes.
He could make allies with versions of his classmates from different universes. For example, a more confident and powerful version of Uraraka in a universe where she has had different training experiences. They could team up and use their combined skills to face challenges.
His classmates could be his allies. They might be intrigued by his Pokemon - quirk and offer to help him train or use it better. For instance, Ochaco could use her zero - gravity quirk to assist Izuku in some Pokemon - quirk - related training exercises.
Maybe it's a group of villains working together. They could be from different factions but united by the idea that Izuku has the potential to become a huge threat to their plans. They might kidnap him to either eliminate him or turn him to their side. Also, it could be a lone, obsessed fan of a villain who wants to prove themselves by bringing Izuku to their idol.
Bakugo is often a key character. In many fanfictions, Bakugo's reaction to Izuku's evolving quirk can range from envy to begrudging respect. Their relationship is always a central focus, with Bakugo either trying to outdo Izuku or having to come to terms with Izuku's newfound power.
All Might often appears. Since he was Izuku's mentor, in time travel scenarios, he might be the one Izuku turns to for advice or assistance. Another common character is Bakugo. Their complex relationship can be explored further in time travel stories, like if Izuku goes back in time, he might try to change how Bakugo treated him in the past.
There could be his friends like Ochaco Uraraka. She might be in a position where she's trying to understand Izuku's situation and help him. Maybe she tries to convince the people forcing Izuku to give him some space.