Deadpool is another popular choice. His self - aware and comical nature can break the fourth wall in any crossover fanfic. If he were in a crossover with the Defenders, he'd probably drive Daredevil crazy with his non - stop chatter and unorthodox methods of fighting crime.
Definitely Loki. He's a fan favorite and can easily fit into various crossovers. His mischievous nature can add a lot of twists to a story. For example, if he were to cross paths with the Fantastic Four, he could play all sorts of mind games with Reed Richards while also being intrigued by Sue Storm's powers.
One great idea could be a crossover between the X - Men and the Avengers. Imagine Wolverine teaming up with Captain America, their different fighting styles and moral compasses would create an interesting dynamic. Wolverine's rough - and - tumble, lone - wolf approach contrasting with Captain America's more traditional leadership and sense of justice.
In Stranger Things crossover fanfics, Dustin is quite popular. His intelligence and his love for science can lead to interesting interactions in crossovers, for example, in a crossover with a scientific - based fictional world. Max Mayfield is also a favorite. Her skateboarding skills and feisty personality can add a lot to crossovers. And then there's Will Byers. His connection to the Upside Down can be explored in many different crossovers, such as in a crossover with a horror - themed universe.
If Cortana were to be in the Marvel universe, her intelligence could be a huge asset. She could potentially interface with Vision's mindstone or help Stark with his technology. Her ability to control and analyze large amounts of data could be very useful in battles against villains like Ultron.
Thor could be involved too. His godly powers and the Rinnegan's otherworldly abilities would create some epic battles or alliances. And of course, Captain America. His sense of justice and leadership would contrast or complement the Naruto character's own values. And on the Naruto side, Naruto himself might be involved if it's a situation where the Rinnegan wielder is his ally or foe. They could have some really deep conversations about power and responsibility.
Definitely Pikachu and Twilight Sparkle. Pikachu is one of the most iconic Pokemon, known for its cute appearance and electric powers. Twilight Sparkle is a central character in MLP, being very intelligent and powerful in magic. Their personalities are quite different, which makes for an interesting dynamic when they meet in a crossover fanfic. They could learn from each other, with Pikachu showing Twilight about the world of Pokemon battles, and Twilight introducing Pikachu to the magic of Equestria.
Sasuke is often a popular crossover character. His cool and brooding nature, along with his powerful Sharingan abilities, make him an interesting addition in crossovers. He could potentially team up with characters like Batman, given their similar dark and complex personalities.
The Avengers are very popular. Characters like Captain America and Thor are often paired with Spider - Man. Their different powers and personalities create interesting dynamics. For example, Captain America's leadership and old - fashioned values contrast with Spider - Man's youthful and sometimes impulsive nature.
One great DC Marvel crossover fanfic is 'The Avengers and the Justice League: United Front'. It has an exciting plot where the two teams come together to fight a common, powerful enemy. The character interactions are well - written, especially the exchanges between Superman and Captain America, who share similar leadership qualities.
There's also 'The Flash and Quicksilver: A Race of Worlds'. This fanfic focuses on the two speedsters from different universes. They start off as rivals but then become friends as they face a threat that only their combined speed can defeat. It has some really cool scenes with their super - speed abilities.
Another possibility is that a Marvel hero, say Spider - Man, accidentally ends up in Beach City. He teams up with Steven to deal with a local threat that is also related to some sort of interdimensional chaos. For example, a group of villains from the Gem world and the Marvel world are working together to open portals to other dimensions to steal valuable resources. Steven and Spider - Man would have to use their unique abilities to stop them.