There could be some new characters too. Maybe a young orphan ninja who looks up to Naruto as a hero and wants to learn from him. There could also be a ninja from a small, less - known village who heard about Naruto's guild and saw it as an opportunity to gain more power and knowledge. And perhaps an outcast ninja who was shunned in their own village but Naruto gives them a chance in the guild because he believes in second chances.
His old Team 7 members for sure. Sasuke might be a bit hesitant at first, but eventually he'd come around because of his bond with Naruto. Sai would also join. He has skills that could be useful in the new village, like his art - based jutsu which could be used for things like mapping or spying in a more creative way.
The guild could be a place for ninjas from different villages to come together. Naruto, believing in unity among all ninjas, creates a guild that accepts members regardless of their village origin. This would cause some initial friction as old rivalries and suspicions surface. But Naruto, with his charisma and determination, would work towards building trust among the members. The guild's main goal could be to fight against a new, greater threat that endangers all the ninja villages, and they would need to put aside their differences to succeed.
Younglings who were disillusioned with the old Jedi ways might be attracted to Anakin's new order. They could see it as a chance for a fresh start and a different approach to using the Force.
They would probably start at a relatively low rank. Naruto's exuberant and friendly personality might make him a bit of a wildcard at first. He'd need to prove himself through his new magical abilities. Sasuke, being more reserved, might be seen as aloof. But as they show their strength and loyalty, they could gradually move up. Maybe Naruto would become popular among the more light - hearted members, while Sasuke would earn respect from the more serious ones.
Well, one possible plot could be that Natsu, after some sort of betrayal in Fairy Tail, decides to create his own dark guild. He might gather some disgruntled mages who also feel wronged by the mainstream guilds. Their goal could be to change the magic world's power structure in a more radical way, using darker forms of magic that are usually shunned. For example, they could explore ancient and forbidden magic spells to gain an edge over other guilds.
His friends like Sasuke would most likely support him. Sasuke, having walked a long path of redemption, would see Naruto's vision of an empire as a way to finally achieve the peace they both have been longing for.
Naruto could be a front - line fighter. His combat skills and powerful jutsus would be great for taking on tough enemies directly. He'd be the one charging into battle without hesitation. Gaara, with his sand powers, could be a great defender. He could protect the guild hall or his comrades during battles. His sand can form barriers and attack enemies at the same time.
Sasuke would likely be in the group. Despite their past differences, Naruto and Sasuke have a deep bond. Sasuke's skills would be invaluable to any group Naruto forms.
In this fanfiction, the characters would have to adapt to a more cutthroat environment. Natsu's friends from Fairy Tail who might join him in the dark guild would struggle with their new identities. They would have to learn to use magic in more aggressive and unorthodox ways. Their moral compasses would be tested as they engage in activities that are considered 'dark' in the magic world. Some might even have a complete character transformation, going from good - natured mages to feared members of the dark guild.
Gray could be a supporting character. He might be passing by and end up getting dragged into helping Lucy, reluctantly at first. Levy could be another. Since she loves books and knowledge, she could offer some help in deciphering the more complex parts of the guild paperwork. And of course, Wendy could be there to offer her gentle support and maybe some healing magic if Lucy gets too stressed.