Maybe there could be a plot where a villain from Overwatch steals some of the quirk - enhancing technology from My Hero Academia. This forces the heroes of both universes to work together to get it back. For example, Tracer and Deku could team up. Tracer's time - jumping ability and Deku's One For All would make for an exciting duo in the chase.
A prevalent theme is the clash of cultures. Overwatch has a more global, technology - based setting, while My Hero Academia is set in a more Japanese - inspired high school environment. Fanfictions explore how the characters from these different settings interact and learn from each other. Also, the theme of heroism is common. Both universes are centered around heroes, and in fanfictions, we see how heroes from Overwatch and My Hero Academia uphold their values in new and challenging situations. This can include things like facing a new, powerful villain that neither group has encountered before.
Winston and All Might would be a powerful duo. Winston's strength as a gorilla - like hero in Overwatch, especially when he goes into his Primal Rage, combined with All Might's Symbol of Peace status and his incredible strength in My Hero Academia. They could inspire those around them while also being a force to be reckoned with on the battlefield, and their leadership qualities could help to guide the combined forces of the two universes.
One great 'My Hero Academia' crossover fanfiction is the one where they cross over with 'One Piece'. It combines the unique powers of the 'My Hero Academia' world with the adventurous and diverse world of 'One Piece'. The characters interact in really interesting ways, like Midoriya being amazed by Luffy's Devil Fruit powers and Luffy being intrigued by the concept of Quirks.
Another good place is Fanfiction.net. There are many talented writers who create crossovers between different fandoms. Check the categories related to these two series. You might also want to join some fan groups on social media platforms. They often share and recommend good fanfiction works. For example, on Reddit, there are subreddits dedicated to fanfiction where you can ask for recommendations specifically for My Hero Academia and Overwatch crossovers.
One popular trope is the 'character swap'. For example, a character from My Hero Academia might take on the role or abilities of an Overwatch character and vice versa. Another is the 'team - up' trope, where heroes from both universes come together to fight a common enemy. It's exciting to see how the different powers and skills interact.
Yes, there are many. Some fanfictions might combine the unique powers from My Hero Academia with the diverse characters of Overwatch. For example, a story could have Tracer with a quirk-like ability. These fanfictions often explore new storylines and character interactions that can be really exciting for fans of both franchises.
One idea could be that Kakashi is somehow transported to the My Hero Academia world. He could become a teacher at UA, using his ninja skills and wisdom to train the students in new and unique ways. His Sharingan would be a very interesting power in the MHA universe.
There's a fanfiction called 'Overwatch in UA High'. In this story, the Overwatch heroes are somehow transported to the My Hero Academia school. They have to adapt to the new environment and also help the students there. It has some really cool fight scenes where the different powers and abilities collide. Also, 'My Hero Academia: The Overwatch Invasion' is quite good. It focuses on how the appearance of Overwatch characters disrupts the normal order in the My Hero Academia world and how they all work towards a new balance.
One idea could be that Godzilla arrives in the My Hero Academia world during a major villain attack. The heroes initially see Godzilla as a threat but soon realize that he is targeting the same villains who are causing environmental destruction. His massive size and power could be a game - changer in the battle.