One idea could be Gohan crossing over into the Naruto universe. He could team up with Naruto and use his Saiyan powers to fight against the Akatsuki. Another plot could be Gohan in the Harry Potter world, using his ki to defend Hogwarts from Voldemort. Or perhaps Gohan in the DC universe, fighting alongside Superman against a common enemy.
In a 'Dragon Ball Z Gohan Crossover Fanfiction', a great plot could involve Gohan in the Star Wars universe. He could be a Jedi - like figure, using his ki as a form of the Force. He might face off against Darth Vader or the Sith. Another idea is Gohan in the Transformers world. He could work with the Autobots to stop the Decepticons. He could use his energy blasts to take on the giant robots. It would be really exciting to see how Gohan adapts to these different universes and uses his skills in new ways.
One idea could be that Gohan discovers an ancient animal with special powers. Maybe it's a mystical deer that can enhance his ki when he's near it. Another plot could involve Gohan turning into an animal himself, like a powerful eagle, and having to learn to control his new form and its abilities. Or perhaps he befriends a group of talking animals who help him in a battle against a new enemy.
One idea could be Future Gohan training a new generation of fighters in a post - apocalyptic world. He could pass on his skills and knowledge, creating a new hope for the future. Another plot could involve him finding a way to travel back in time to prevent the events that led to his world's destruction. Maybe he discovers a hidden power within himself that he didn't know he had and uses it to fight against the remaining threats in his world.
Another plot could involve Gohan and Videl having to deal with a strange power that is affecting the people around them. They might have to figure out the source of this power and find a way to stop it while also strengthening their relationship. This could include some emotional moments between them as they support each other through tough times.
One idea could be Gohan and Lime teaming up to face a new and powerful enemy that neither of them could defeat alone. They could train together, with Gohan teaching Lime some of his Saiyan techniques.
Perhaps a story where Gohan and Videl have to team up to protect their family from a new and powerful threat that is specifically targeting them. They would have to use their combined skills and the power of their relationship to overcome it. In this fanfiction, we could see how their love for each other and their family gives them the strength to fight.
One idea could be Goku and Gohan going on a special training journey to a new planet with unique gravity and energy sources. This would force them to adapt and develop new techniques together.
One idea could be a crossover with the Naruto universe. Goku and Naruto could team up to fight a common enemy. Maybe they face an evil villain who has the power - stealing abilities like Cell and the ability to use powerful ninja jutsus. Another plot could be a crossover with One Piece, where Luffy and Goku have a friendly competition about who can eat more food and then end up having to work together to defeat a new threat at sea that has the strength of Saiyans and the deviousness of pirates.
Well, a cool plot for Dragon Ball Xenoverse Crossover Fanfiction could be a time - traveling crossover. Imagine characters from different anime universes being brought to the Dragon Ball Xenoverse timeline. For example, characters from Fullmetal Alchemist arrive in the Xenoverse. Edward could use his alchemy skills against the Dragon Ball villains, and Alphonse could have some really interesting interactions with the Dragon Ball characters, like Bulma or Master Roshi.
One idea could be that Broly is transported to an alternate universe where he teams up with Goku from a different timeline to fight a new, powerful enemy. They have to combine their unique fighting styles to stand a chance.
One idea could be a crossover with the Naruto universe. Imagine Goku and Naruto teaming up to fight a common enemy like a powerful, evil entity that combines the worst aspects of the Akatsuki and the Red Ribbon Army. They could learn from each other's fighting styles, with Naruto teaching Goku about chakra and Goku showing Naruto the power of ki.