One idea could be the Boys teaming up with a DC hero like Superman, but then realizing his 'good guy' image might be a facade too. Another could be Homelander facing off against Batman in a battle of wits and power.
A great plot idea for 'the boys dc crossover fanfiction' would be to explore how the corrupt corporate world of The Boys' universe intersects with the often morally grey areas in the DC universe. For instance, Vought could try to manipulate some of the DC heroes for their own gain. The Boys would then have to expose this to the DC heroes who might not believe them at first. This could lead to a lot of interesting character dynamics, like Butcher trying to convince Batman that not all is as it seems in his world. And we could also see how the powers of the supes in The Boys compare to those of the DC characters. Maybe A - Train tries to race The Flash and realizes just how outmatched he is.
Another plot could involve Gohan being mistaken for a new metahuman in the DC universe. As he tries to find his way back home, he gets caught up in a conflict between the Justice League and a group of supervillains. His Saiyan powers could be the key to resolving the situation.
One idea could be Goku ending up in the DC universe and having a friendly spar with Superman. Their different power sources and fighting styles would make for an exciting encounter. Maybe Goku learns about Kryptonite and how it affects Superman, which gives him a new perspective on weaknesses.
One idea could be Wolverine getting transported to the DC universe and teaming up with Batman. They could combine their detective skills to solve a mystery that involves both mutants and metahumans. For example, a new villain is creating chaos in Gotham by using some sort of technology that affects Wolverine's healing factor in strange ways.
One idea could be that Naruto and his friends are transported to the DC Universe. Naruto's chakra could be seen as a form of magic in the DC world. He might team up with Superman to stop a powerful villain who is after both kryptonite and Naruto's chakra. Another plot could involve Batman being intrigued by Naruto's ninja skills and trying to incorporate some of them into his own combat style.
A cool plot for dc super heroes crossover fanfiction could involve Wonder Woman and Aquaman. Maybe there's a threat that endangers both Themyscira and Atlantis. They must combine their unique skills, like Wonder Woman's combat abilities and Aquaman's control over the sea, to save their respective homes. Also, a Martian Manhunter and Cyborg crossover could be interesting. The Martian Manhunter's shape - shifting and telepathy, along with Cyborg's technological prowess, could be used to stop a cyber - psychic threat.
Maybe a crossover with the Justice League. The DC Superhero Girls look up to the League, and in this fanfiction, they could be called upon to help when the League is incapacitated by a powerful magic spell. It would be a chance for the girls to prove themselves on a bigger stage.
One idea could be that Naruto, with his Mokuton abilities, gets transported to the DC universe. He might team up with Green Arrow in Star City. Since Naruto can create and control plants, he could help Green Arrow by using the Mokuton to create natural barriers during battles or to track enemies by sensing their movements through the plants. Another plot could involve Naruto meeting Poison Ivy. They could have an interesting dynamic as both have a connection to plants. Naruto might try to convince her to use her powers for good instead of causing chaos.
One interesting plot idea could be that a character from DC, like Batman, somehow ends up in the Watchmen universe and has to deal with the moral ambiguity there. He might find himself clashing with Rorschach over their different views on justice.
Another plot could involve a crossover with a post - apocalyptic world. The Boys find themselves in a world where society has collapsed, and they have to team up with the survivors against new threats. This could bring out new sides of the characters as they are forced to adapt to a completely different environment and face challenges they've never faced before.
A cool dc superheroes crossover fanfiction could involve Wonder Woman and Aquaman. They could discover an ancient underwater civilization that has a connection to the Amazons. As they explore this link, they face off against some sea - based villains and also have to deal with the political tensions between the surface world and Atlantis.