His spider - sense would be a very useful power in the MHA universe. Given that many battles in MHA involve sudden attacks and surprises, Spider - Man's ability to sense danger before it happens would give him an edge. He could use this to warn his MHA allies and prevent ambushes. Also, his super strength would make him a formidable force against the powerful villains in the MHA world. He could hold his own against even the strongest quirks, like All - Might's strength - based quirk.
The 'team - up' trope is always popular. Whether it's Spider - Man teaming up with Deku and his friends to take on a powerful villain, or the MHA heroes joining Spider - Man to fight a threat in New York. Also, the 'mentor - mentee' trope can work well. Spider - Man could mentor a young hero in MHA, teaching them about responsibility and using their powers effectively.
One interesting crossover could be having Midoriya from MHA gain Spider - Man's powers. He could use his One For All quirk in combination with the web - slinging ability. Picture him swinging between the skyscrapers of Musutafu while also using his super strength in combat. Another idea is Peter Parker attending UA High. He'd bring his scientific knowledge and web - shooting skills, and would probably befriend characters like Izuku and Bakugo. He could also learn some new combat moves from the hero students there.
A great crossover idea could be a team - up between Spider - Man and Deku. They could learn from each other's sense of responsibility. Spider - Man has been dealing with the weight of his powers for a long time, and Deku is constantly growing into his role as a hero. They could share their experiences and fight a common villain that threatens both their worlds.
Well, Iron Man's high - tech suit could be seen as a super - powerful quirk in the My Hero Academia world. His flight ability would make him a top - tier hero in terms of mobility. His repulsor beams could be like a very strong emission - type quirk. He could also use his suit's advanced sensors and analytics to outsmart villains, much like how some heroes in MHA use their intelligence - based quirks.
She could have the same powers as Spider - Man, like super strength, agility, and the ability to stick to walls. But maybe her web - slinging is a bit different, like she can create different types of webs, perhaps ones that are stronger or have special properties.
Loki's illusions combined with Spider - Man's acrobatic skills would be a great combination. Spider - Man could move within Loki's illusions, confusing their enemies even more. And if Loki were to use his telekinesis to move objects, Spider - Man could use his webs to direct those objects towards their enemies. Also, Spider - Man's ability to stick to walls could be used in Loki's lairs or magical structures, allowing him to navigate them more easily while Loki uses his magic to deal with any traps or guards.
Well, Spider - Man's agility and ability to stick to walls could be really useful in combat situations where She - Hulk is facing off against a more powerful foe. He could quickly move around the enemy, distracting them while She - Hulk delivers powerful blows. His webs could also be used to temporarily restrain the enemy or set up traps.
Saitama's overpowered strength would likely be a huge disruptor in the MHA world. His simple yet extreme power of being able to defeat any enemy with one punch would make him a top - tier hero instantly. Genos, with his advanced cybernetic enhancements, would also be quite formidable. He could potentially be part of the development of new support items or hero gear in the MHA universe, given his knowledge of technology. And his combat abilities would put him in the ranks of the stronger heroes there.
Many fanfics emphasize his more aggressive use of the webbing. Instead of just using it to swing or capture villains like Peter Parker, he uses it to constrict and even harm villains more severely. He might web a villain's limbs together in a way that causes real pain, showing his different moral compass when it comes to fighting crime.
In fanfiction, Spider - Man could fit into the Fantastic Four by bringing in his own set of values. He has a strong sense of responsibility which could influence the group. Also, his intelligence in the field of science (he's no slouch in that department) could be an asset when the Fantastic Four are dealing with scientific problems. He might also introduce new ways of using their powers based on his own experiences in combat.