Goku is, without a doubt, one of the most popular. His constant pursuit of strength and his ability to overcome seemingly impossible odds make him a favorite for fanfiction writers. They can create all kinds of new adventures for him, like facing off against cosmic threats even greater than what he's encountered in the shows.
Future Trunks is often a central character. His time - traveling aspect gives a lot of scope for interesting plotlines in 'Dragon Ball Z Legends Fanfiction'.
There are no such inappropriate 'Straight Shota' stories in the official Dragon Ball Z canon. Dragon Ball Z mainly focuses on epic battles, power-ups, and the adventures of Goku and his friends to protect the Earth from various villains.
Well, Vegeta could also be a contender for the strongest in this crossover. He has his own set of powerful transformations. However, if we consider the more mystical aspects of Naruto, like the power of the Rinnegan, characters like Sasuke could also be very strong. In a crossover, if Sasuke were to combine his Sharingan and Rinnegan powers with some of the ki - based techniques from Dragon Ball Z, he could be extremely powerful. It really depends on how the writer wants to balance the different power systems.
Dragon Ball Z is both anime and manga. The anime was adapted from the manga and they share the same story and characters, but presented in different mediums.
All Kings were not the strongest characters in Dragon Ball. Although Quan Wang had the ability to destroy the universe in Dragon Ball Super, his strength was not impressive. According to the combat power ranking, the strongest character in Dragon Ball Super was the Great Divine Priest. He belonged to the Angel Clan and had extremely strong combat power. In addition, there were other powerful characters in the Dragon Ball Super, such as the guards of the whole king and the angels. Their strength also exceeded the whole king. Therefore, it could be said that the whole king was not the strongest character in Dragon Ball.
The main characters in 'Dragon Ball Z' are Goku, Vegeta, Gohan, Piccolo, Krillin, and Bulma. Goku is the protagonist, a Saiyan sent to Earth as a baby. Vegeta is a proud Saiyan prince. Gohan is Goku's son, who also has great power. Piccolo is a Namekian and a former enemy turned ally. Krillin is Goku's best friend, and Bulma is an inventor who is part of the gang from the very beginning.