Naruto's ability to use chakra could give Goku a new way to power up. Maybe Goku could learn to combine chakra with his ki, creating a whole new level of power. Also, Naruto's shadow clone jutsu could be used by Goku in his training, allowing him to fight multiple opponents at once and improve his skills faster.
Naruto's abilities would have a huge impact on Goku. His Rasengan technique could be modified by Goku to fit his fighting style. Since Naruto has a great deal of stamina, he could teach Goku how to better manage his energy during long battles. And Naruto's ability to sense the presence of others through chakra could be a useful addition to Goku's combat skills, making him more aware of his surroundings and enemies.
Their relationship could develop in a very interesting way. Given Naruto's background of being an outcast in his village at first, he might be a bit hesitant to fully embrace Goku as a brother. But Goku's open - heartedness would gradually break down those barriers. Goku would introduce Naruto to his friends in the Dragon Ball world, and Naruto would do the same in the ninja world. They would start to share their stories, like Naruto's fight against Pain and Goku's battles against Frieza. Through these shared experiences, they would grow closer and closer, until they are inseparable brothers who are ready to take on any threat to their combined worlds.
Goku's powers are on a much higher scale. His ability to destroy planets as a Super Saiyan makes him far more powerful than Naruto at his strongest. Naruto's jutsu are mainly focused on the ninja world, while Goku's powers are universal.
They would likely have a very strong bond. Since they are brothers, they would support each other in battles and in their personal growth.
One possible plot could be that Naruto somehow ends up in the Dragon Ball universe and through some strange turn of events, becomes Goku's father. He could teach Goku his ninja skills in addition to his martial arts training. Naruto's strong sense of justice and never - give - up attitude would influence Goku a great deal, leading to a more complex and interesting character for Goku.
His speed would increase. Goku Black is very fast, and his training could make Naruto move at blistering speeds. Also, Naruto's power attacks would be stronger. Goku Black's training methods would push Naruto to new limits.
In a Goku Naruto crossover, both characters have their own strengths. Goku's physical strength and energy attacks are off the charts. His ability to instantly teleport and sense ki gives him an advantage in combat. Naruto, though, has a unique power system. His connection to the Nine - Tails and his ability to use different types of chakra make him a force to be reckoned with. If we consider a battle, Goku's power might seem greater on the surface. But Naruto has the advantage of being able to surprise his opponents with his ninjutsu and clones. Also, Naruto has a strong willpower that has allowed him to overcome many tough situations, which could play a role in a fight against Goku.
Naruto might become more calm and collected. Goku has a certain simplicity and focus in his personality. Naruto could pick up on that and not be as impulsive as he usually is.
Goku would probably be really excited to meet Naruto. He'd be interested in Naruto's ninja skills and might ask to learn some of them. Naruto would be in awe of Goku's power at first but would quickly warm up and see him as a friend. They'd likely start by comparing their abilities and then team up to face a common threat.
Well, Goku's extreme power level could make him a sort of legend in the Naruto fanfiction world. His Saiyan abilities like the Kamehameha and Super Saiyan forms would be completely foreign to the ninjas. He might be seen as an otherworldly being, and his presence could disrupt the power balance. Maybe he'd come to the Naruto world seeking a new challenge, or perhaps he was accidentally transported there.
Well, in Naruto fanfiction, Goku and Vegeta might be introduced as legendary figures. Goku's kind - hearted and always - ready - to - fight nature could be seen as an inspiration to some of the younger Naruto characters. Vegeta's journey from a villain - like character to a more complex anti - hero in his own story could be mirrored in the Naruto universe. They could be brought in to help during a major crisis, like when the Akatsuki was at its peak, using their unique powers to turn the tide.