Definitely Deku. His determination and continuous growth would make him stand out in college. He'd probably be at the top of his classes, always eager to learn more about quirks and heroics. Bakugo would also shine. His powerful quirk and competitive nature would lead to some intense rivalries and great character development in a college environment. And Todoroki, with his complex family background and dual - natured quirk, would have a lot of room for exploration in college as he tries to further master his powers and come to terms with his past.
In a darker take, even some of the younger students at U.A. High could die. This would be a very emotional and impactful event. It would show the harsh reality of the hero world and how not everyone is guaranteed to survive, no matter how much potential they have.
I think the students like Kaminari and Sero would be involved. Kaminari with his goofy personality might initiate some pranks, and Sero could use his tape quirk to set up some elaborate prank setups. Also, the teachers like Aizawa could be involved. He might play a prank on the students to teach them a lesson in a rather unorthodox way. Another character could be Todoroki. His rather stoic nature could be a great contrast to the chaos of a prank.
Obviously, Izuku Midoriya will be the central character. His friends from U.A. High like Ochaco Uraraka and Tenya Iida are likely to be involved. They would be there to support or oppose Izuku depending on the nature of the spiral he's in. Also, All Might might play a role as Izuku's mentor, guiding him through whatever challenges the spiral presents.
Definitely Todoroki. His ice and fire powers could be used in different ways against Godzilla. He could try to freeze parts of Godzilla to immobilize it or use his fire to counter any heat - based attacks Godzilla might have. Also, Recovery Girl could be involved in an interesting way. After any battles with Godzilla, she would be needed to heal the injured heroes, and she might also come up with some unique medical strategies based on Godzilla's physiology if she could study it.
Definitely Izuku Midoriya. He's the main protagonist in the original series, so he would probably play a crucial role in any 'Days of Future Past' type of story. He could be the one leading the charge to change the future.
Uraraka could also be likely to choose truth. She's friendly and open - minded. She might see choosing truth as a way to bond more with her classmates and share some of her dreams or experiences in the hero academy.
Deku is a very likely character. Since he is the main protagonist, seeing different versions of himself in the multiverse would be a great way to explore his character further. He could learn from the experiences of his other selves.
Izuku Midoriya is a likely character. He has a strong sense of justice and is always willing to put others before himself. His determination to be a hero makes him a prime candidate for self - sacrifice. Bakugo Katsuki could also be involved. Despite his tough exterior, he has a good heart and would sacrifice for his friends and to prove himself as a true hero.
Well, you could focus on the social aspects in a My Hero Academia college fanfiction. Maybe some characters struggle to fit in because their quirks are considered odd or too powerful. Or perhaps there are rivalries between different departments, like the combat - focused department and the support department. You could also write about a college event, like a hero - themed sports festival, where the characters show off their quirks in new and exciting ways.
All Might from My Hero Academia could also be a good choice. His strength and experience would be valuable. And from Nanatsu no Taizai, Ban. Ban's immortality and combat skills could complement All Might's power. They might form an alliance because they both have a strong will to protect the weak.