Vegeta from the Dragon Ball series is often popular. Fans like to write about his reaction to Naruto's world and how he might interact with the characters there. Also, Sasuke from Naruto is frequently included. He could be a rival or an ally in the fanfiction, given his complex character. Another one could be Piccolo. His calm and strategic mind would be interesting to incorporate in stories involving Naruto's more chaotic ninja world.
Well, I think Kakashi from Naruto is a very popular character in Goku x Naruto fanfiction. His laid - back yet highly skilled nature would contrast well with Goku's more straightforward power - based approach. In addition, Bulma from Dragon Ball is also often written about. She could use her scientific genius to help out in Naruto's world, or perhaps create some new gadgets for Goku and Naruto to use in their adventures. And then there's Jiraiya. His pervy yet wise - old - man persona would add a lot of humor and depth to stories when combined with the Dragon Ball characters.
Well, Vegeta would be a likely character. He might be initially suspicious of the female Goku. Maybe he thinks she's a threat or just can't believe there's another Goku - like being. He could be there to add some comical moments as he tries to understand the situation.
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.
Well, obviously Goku Black himself is very popular. Writers often focus on his character, his power, and his motives.
Issei would be very likely. Since Issei is the main character in DxD, his curiosity and his own pursuit of power would make him interested in Goku. They could train together and learn from each other's abilities. Also, Rias would interact with Goku. As a powerful devil, she would be intrigued by Goku's power and his different way of approaching battles.
Sasuke could also oppose Black Goku. With his Sharingan and Rinnegan, Sasuke has a wide range of powerful abilities. He is also very intelligent and strategic. Sasuke would likely see Black Goku as a threat to the balance of power in the Naruto universe and would step in to fight him, especially if it involved protecting his friends or the ninja world in general.
Well, Goku is used to fighting on a cosmic scale against extremely powerful foes. He has mastered various energy - based attacks and can fly at high speeds. Naruto, on the other hand, is a master of ninjutsu and has his shadow clones which can be used for both offense and defense. But Goku's ki - based attacks are on a different level. If Goku were to quickly close the distance and use a powerful ki blast, Naruto might struggle to defend. But Naruto could also use his strategic thinking and the element of surprise to his advantage. Overall, it's likely that Goku would win due to his greater raw power and experience in more intense battles.
Vegeta would be a great addition. His rivalry with Goku and his pride as a Saiyan would add an interesting dynamic. He might be initially jealous that Goku is getting to fight and train with the God of Destruction. But then he would also want to prove himself and join in the action. Whis could also be included. His knowledge and calm demeanor could help in situations where the power of Goku and the God of Destruction gets out of hand.
Bulma is also very popular. Her intelligence and sassy personality add a lot to the stories. In fanfiction, she often plays a key role in coming up with solutions to problems, whether it's through her scientific inventions or her sharp wits in dealing with family drama or threats from outside.
One of the most popular pairings is Goku with Mew. Mew is this mysterious and all - powerful Pokemon. When combined with Goku's power, there are so many possibilities for the story. They could go on adventures together, exploring new dimensions or facing off against powerful villains. Also, Goku and Lucario are often paired because Lucario has a sense of honor and combat skills that can be compared to Goku's martial arts.
Bulma could be involved. Since she has a relationship with Vegeta and is friends with Goku, she might try to mediate between them when Goku snaps at Vegeta. She could be the voice of reason, trying to calm both of them down and make them see each other's point of view.