One possible plot could be that Naruto is somehow transported to the Spider - Man universe. Maybe he lands in New York and is mistaken for a new kind of super - powered being. Spider - Man, being curious, approaches him. Naruto, not understanding this new world, starts using his ninja skills which amaze the people around. They then team up to fight a common enemy like the Green Goblin who has somehow got hold of some chakra - based technology. The combination of Naruto's ninjutsu and Spider - Man's web - slinging and super strength would make for an epic battle.
Wolverine from the X - Men would be a great addition. His healing factor and berserker rage, along with his claws, would contrast well with Spider - Man's abilities. They could have some intense battles together against common enemies. And Scarlet Witch. Her reality - warping powers could create all sorts of interesting situations. Spider - Man would have to figure out how to deal with the chaos her powers might cause while also teaming up with her to defeat a greater evil.
One idea could be a crossover with the X - Men. Spider - Man could find himself in the middle of a conflict between mutants and anti - mutant forces. He'd have to use his quick thinking and agility to help the X - Men protect the young mutants. Another could be a crossover with the Fantastic Four. Maybe Spider - Man gets caught in one of Reed Richards' experiments gone wrong and they all have to work together to fix it while also dealing with a new super - villain that emerges from the chaos.
Definitely Naruto and Spider - Man themselves. Their personalities are so different. Naruto is loud, energetic and always eager to prove himself. Spider - Man, on the other hand, is more of a quippy and responsible hero. When they interact, there would be a lot of banter. Another interesting interaction could be between Naruto's Sensei, Kakashi, and Spider - Man's mentor, like Uncle Ben in spirit. They could exchange wisdom about guiding their young proteges.
Even one of Spider - Man's fellow superhero friends might betray him. Maybe they get jealous of Spider - Man's popularity or feel that he is getting all the credit for their team's successes. This internal betrayal would add a lot of drama and conflict to the fanfiction story.
One possible fanfiction could be about Peter Parker using his Spider - Man abilities in a snow - covered city during a cold snap. Maybe he has to deal with villains who are taking advantage of the difficult weather conditions. For example, a villain could be using the snow and ice to create dangerous traps for the citizens, and Spider - Man has to swing through the icy streets to stop them.
Peter Parker as Spider - Man is obviously a popular character. He's the main protagonist. Venom is often a popular character in fanfictions as well. His dark and menacing nature contrasts with Spider - Man's heroic side. Mary Jane might also be popular as she is an important part of Spider - Man's story. Another could be Harry Osborn, as his relationship with Peter is always an interesting aspect to explore in fanfictions.
Deadpool in fanfiction with Ultimate Spider - Man can be a source of comedic relief. His fourth - wall - breaking and over - the - top personality contrast with Spider - Man's more serious and relatable nature. This can lead to some really interesting interactions. For instance, Deadpool might make jokes about Spider - Man's costume or his love life, while Spider - Man tries to stay focused on the task at hand, like stopping a villain. Their relationship can range from reluctant allies to begrudging friends, depending on how the author writes it.
Well, first off, Captain America. His sense of honor and leadership could be a great influence on Spider - Man. Then there's Doctor Strange. He could introduce Spider - Man to the magical side of the Marvel universe. And of course, Deadpool. His wacky and unpredictable nature would add a lot of humor to the crossover. He and Spider - Man could have some hilarious banter while fighting bad guys.
In an 'ultimate spider man crossover fanfic', a really interesting crossover could be with Venom. But instead of being enemies, they team up. Maybe there's a new symbiote - like threat that is even more powerful and they have to combine their powers to defeat it. Another idea is a crossover with the Guardians of the Galaxy. Spider - Man gets accidentally transported into space and has to team up with Star - Lord and the gang to get back home while also fighting off some space - pirates.