One exciting plot could be that Goku and Naruto are brought together by some strange interdimensional rift. They initially misunderstand each other and get into a small fight. But then they realize they have a common enemy. An evil force is trying to collect the power of the Chakra and Ki to become all - powerful. So, they team up, with Naruto teaching Goku about chakra control and Goku showing Naruto some of his Super Saiyan forms and training methods. They then combine their powers in an epic battle against the evil force.
A possible plot could involve a tournament where characters from both Naruto and Dragon Ball Super are invited. Naruto enters with his team, and Goku, Vegeta, and others from the Dragon Ball world also participate. As the tournament progresses, Naruto discovers new powers within himself by observing the Saiyans' power - ups. And Goku learns about the value of friendship and teamwork from Naruto. In the end, they face off against a powerful opponent created by an evil wizard who wants to take over both universes.
One possible plot could be that Naruto and his friends are facing a powerful new enemy in their world. However, this enemy has some sort of connection to the Dragon Balls. Goku and Vegeta sense the strange energy from Naruto's world and travel there using Instant Transmission. They then team up with Naruto and the others. Naruto is amazed by Goku's strength and ki abilities, while Goku is intrigued by Naruto's chakra and ninja skills. Together, they combine their powers to defeat the common foe.
One possible plot could be that Thanos has somehow obtained the Dragon Balls. The Avengers team up with Goku and his friends to get the Dragon Balls back and stop Thanos from using them for his evil plans. They have to battle Thanos' forces while also dealing with the different power levels and fighting styles between the two universes.
The plot might involve a tournament where characters from both Naruto and Dragon Ball Super participate. Naruto's friends like Sasuke and Sakura could join in, and so could Goku's friends like Vegeta and Piccolo. The tournament could have unique rules that combine the elements of both worlds. For example, in addition to physical combat, there could be challenges related to chakra control and ki manipulation. The story could also explore the relationships between the characters from different universes, like how Naruto and Vegeta might initially clash due to their headstrong personalities but later come to respect each other.
Well, perhaps the Saiyans in Dragon Ball Z detect the strong energy from the Devil Fruits in One Piece. Vegeta decides to visit the One Piece world to see if he can gain an edge over Goku. Meanwhile, the Straw Hats are dealing with a new threat that seems to be more powerful than any they've faced before. Vegeta initially clashes with the Straw Hats but then realizes they need to work together. They combine their skills, like Goku's Kamehameha and Luffy's Gear Fourth, to take on the big bad.
Another aspect to consider is how the Super Saiyan transformation would affect the relationships in the Naruto world. If Sasuke were to gain Super Saiyan powers, it could either drive him further away from Naruto due to the newfound power or bring them closer as they explore the new abilities together. Also, the concept of ki from Dragon Ball and chakra in Naruto could be merged, creating a whole new type of energy for the characters to utilize.
One possible plot could be that the villains from GT, like Baby, somehow find a way to cross over into the Super universe. Goku and Vegeta from Super would then have to team up with their GT counterparts to stop Baby from taking over the entire multiverse. They would need to combine their powers, like Super Saiyan Blue and Super Saiyan 4, to stand a chance against this powerful foe.
Maybe Naruto, in his godlike form, ends up in the Dragon Ball Super universe and teams up with Goku to fight a common enemy. They combine their powers in unique ways to defeat the bad guy.
The plot might involve a villain who has the ability to steal both ki and chakra. This forces Goku and Naruto to team up. Goku, with his Super Saiyan forms, provides brute strength, while Naruto, with his various jutsu like Rasengan and his Sage Mode, offers strategic combat skills. They would have to combine their powers in unique ways to defeat this new threat.
Well, it could be about Naruto characters learning ki techniques from Dragon Ball Z. For example, Naruto might try to learn how to use the Kamehameha wave. It would be really interesting to see how his chakra system would interact with ki energy.
In a 'Harry and Dragon Ball' crossover fanfiction, perhaps the Deathly Hallows and the Dragon Balls have some sort of hidden connection. Harry, Ron, and Hermione are on a quest to find out more about this connection when they are suddenly whisked away to the Dragon Ball universe. There, they meet Bulma who is intrigued by their magic. Harry's scar starts acting up in a new way, as if it's reacting to the powerful ki in this universe. They soon learn that a new, powerful dark force is emerging that is related to both Voldemort and some of the Dragon Ball villains. They must combine their magic and the power of the Dragon Balls to stop this new threat.