Perhaps they would team up to fight a common enemy. Peter's agility and combat skills combined with Bruce's Hulk - like strength could make for a formidable duo. They could be facing a villain who is both a scientific threat and a physical menace.
I really like 'Partners in Science'. In this fanfiction, Peter and Bruce start working together after Peter discovers some strange radiation that he can't figure out on his own. Bruce helps him analyze it, and their friendship grows throughout the story. It has some really cool action scenes where they have to fight off bad guys who are also interested in the radiation.
If they meet, Bruce Banner might be really intrigued by the magic in Harry's world. He could see it as a new form of science. And Harry could be fascinated by Bruce's scientific knowledge. They might exchange ideas, with Harry showing Bruce how magic can do things like teleportation, and Bruce explaining some scientific concepts to Harry, like how gamma radiation works.
Their first meeting could be a bit awkward. Peter might be a bit star - struck seeing Bruce, and Bruce could be initially cautious around this young, super - powered kid. Maybe Peter accidentally stumbles into Bruce's lab while looking for something related to his own science project.
Another theme is the exploration of their dual identities. Peter has to balance his life as a student and Spider - Man, and Bruce has his own struggles with the Hulk. Fanfictions often explore how they can relate to each other's problems and support one another in dealing with their identities.
One common theme is mentorship. Bruce could be a mentor to Peter, guiding him with his scientific knowledge. For example, in some fics, Bruce helps Peter with his web - shooter technology.
In a 'Peter Parker meets Shuri' fanfiction, they could team up to fight a common enemy. Maybe a new super - villain emerges in both their worlds and they combine their unique skills. Peter with his spider - abilities and Shuri with her brilliant Wakandan technology.
Well, Deadpool might crack a lot of jokes and make Peter Parker super confused. He could also try to team up with Peter to fight some villains, but his crazy methods would probably drive Peter nuts.
In a 'Peter Parker meets Loki' fanfiction, they might start as adversaries. Loki could see Peter as a new and interesting target to play his tricks on. Peter, on the other hand, would be initially cautious but also curious about this Asgardian. Maybe Loki would try to use Peter's naivete to his advantage, but Peter's Spider - Sense would keep him on guard. Eventually, they could end up teaming up against a common enemy, like some powerful interdimensional villain.
Well, Loki might see Peter as a new toy to play with. He could mess with Peter's life by using his illusions, like making Peter think his friends and family are in danger. Peter, of course, would try to fight back and save them. This would lead to a chase around the city, with Loki leaving false trails and Peter using his spider - abilities to track him down.
Perhaps in this fanfiction, Peter Parker meets the Defenders when they are all investigating the same strange occurrences in the city. There could be a mystery involving some sort of strange energy or new type of criminal organization. The Defenders with their unique skills and Peter with his spider - powers would start to piece together the clues. Along the way, they would have to overcome their differences in approach. For example, Peter is used to working alone most of the time, while the Defenders are a team. But in the end, they would combine their forces to solve the mystery and protect the city.