Naruto himself would most likely be a main character. He's the protagonist of the Naruto series, so it's natural for him to be in the fanfic. His determination and never - give - up attitude would be interesting to see in the Tower of God setting.
Sasuke could also be a main character. His rivalry with Naruto could play out in new ways in the Tower of God. Maybe they would compete to reach the top of the Tower or have to team up against a common enemy within the Tower.
There might be some Tower of God characters as main characters as well. For example, Bam. His relationship with the Naruto characters could be a major part of the story. He could be a guide or an ally to Naruto and his friends, or they could start off as enemies and then grow to understand each other as they climb the Tower together.
Well, obviously Naruto himself would be the main character. There could also be his friends like Sasuke and Sakura, who might be involved in the interactions between the two Narutos. Maybe they are confused at first by seeing two Narutos, but then they help them figure out what's going on.
It could still be Naruto himself. Since he's the central character in the original series, many fanfics would likely continue to build on his story.
Well, aside from Naruto's usual comrades, there could be new characters introduced. Maybe some ancient sages or demons who are either attracted to Naruto's new chaotic status or are trying to take advantage of it. And of course, the kages of the different villages would play significant roles as they would be directly affected by Naruto's actions as the 'god of chaos'.
Obviously Naruto would be one of the main characters. Since it's a Naruto - based crossover, he's the central figure from the Naruto universe. And then there could be a god or gods. It could be a well - known god from a particular mythology, like Zeus from Greek mythology. He would bring his own set of powers and personality to the story.
Naruto himself is the most obvious one. Since it's a Naruto - related fanfic, he would likely be at the center of any crossovers with god - like entities. His strong will and desire to protect his village make him a prime candidate for interacting with powerful gods.
Obviously, Naruto would be one of the main characters as the story is about him being the son of Whitebeard. Whitebeard himself would also be a major character, even if he might not be around for the whole story. And then there would be the other members of the Whitebeard pirates, like Marco. They would play important roles in Naruto's life in the pirate world, either as mentors or comrades.
Obviously, Naruto and Jiraiya are the main characters. They are the focus of the 'naruto meets jiraiya' concept. Naruto, the energetic and determined ninja, and Jiraiya, the wise and powerful mentor.
Naruto is surely going to be one of the main characters. After all, it's a Naruto fanfic. Sasuke is also very likely to be there as his rival and friend. Sakura might also play an important role.
Naruto himself would probably be one of the main characters. Since he has always been about protecting his friends and the village, a 'greater good' narrative could put him in situations where he has to make even more difficult decisions regarding the well - being of everyone. He might have to sacrifice his own desires for the greater good.
Sasuke could also be a main character in the 'naruto jonin exams fanfic'. His skills and his rivalry with Naruto would make for an interesting plotline during the exams. Also, Sakura might be a main character as well. She has grown as a ninja and could show off her new abilities during the jonin exams.