Well, in dbz fanfiction, there are often concepts like time - travel adventures. Imagine a story where Trunks goes back in time not just once but multiple times, and each time it creates a different ripple effect in the Dragon Ball Z universe. Some fanfictions also play with the idea of fusing characters in new and unexpected ways, creating super - powerful hybrids that were never seen in the official story.
One interesting idea in dbz fanfiction is the exploration of alternate universes. For example, what if Goku had been raised on a different planet? Another is the development of relationships between characters that weren't fully explored in the original series, like a deeper friendship between Vegeta and Piccolo. Also, some fanfictions focus on power - ups for minor characters, giving them a chance to shine in battles.
One idea could be a crossover where Goku from DBZ ends up in the Supernatural universe and has to team up with the Winchester brothers to fight demons. He could use his ki blasts against the hordes of hell.
One idea could be exploring the life of a human who gains Saiyan-like powers through some scientific experiment gone wrong. They then have to learn to control these new powers while hiding their secret from the world.
One idea could be to explore what if Gohan had a different training partner before the Cell Games. For example, if Piccolo had trained with him more intensively, it might have changed his power level and fighting style during the games.
Perhaps a fanfiction about a human who has a special bond with the dragon balls. This human is strong not just physically but also in terms of their spiritual connection to the dragon balls, which gives them unique powers and the ability to influence the wishes made on the balls.
One idea could be a battle between Goku and Superman to determine who is the strongest in the universe. They might start off as rivals but then realize they have more in common than they thought and team up against a greater threat like Darkseid and Frieza combined.
Well, in a dbz justice league fanfiction, there could be a plot where the power levels of the Justice League members are measured using the scouters from DBZ. This could lead to some interesting reactions. Superman might have an off - the - charts power level that astonishes the Z - fighters. At the same time, the Justice League could learn some ki - based techniques from the DBZ characters. For instance, Aquaman could learn how to fly using ki, which would be a huge advantage for him in underwater and above - water battles.
One idea could be that Goku ends up in the world of Aladdin. He might mistake the flying carpet for a new kind of Ki - powered vehicle. And he could use his martial arts skills to help Aladdin fight off Jafar's minions in a really action - packed way.
Another interesting concept is to cross them over with a fantasy world. Saiyans could be in a world full of magic and mythical creatures. Picture Vegeta having to deal with dragons that can talk and cast spells. Their Saiyan pride might get in the way at first when they realize that their brute strength isn't always enough in this new world.
A cool concept could be that Vegeta gets transported to Gotham City. He initially clashes with Batman due to their different methods, but they eventually work together to take down a powerful new enemy that is a threat to both their worlds.
Maybe in the fanfiction, Cell could be re - created in a different form with a mix of other characters' DNA. He could have some of Piccolo's regeneration abilities along with Gohan's hidden power. This would lead to a whole new set of battles and power - level dynamics as the Z - fighters try to figure out how to deal with this new Cell.