Shikamaru is another one. Since Shikamaru is already known for his intelligence, a super intelligent Naruto could lead to some really interesting interactions. They might collaborate on difficult missions, with each bringing their own unique intellectual strengths to the table.
Sasuke would be a likely character. Their rivalry could take on a new dimension as Naruto's super intelligence might make Sasuke more intrigued or even a bit jealous. They could have more complex conversations about strategy and the future of the ninja world.
Sasuke would likely be one of the main characters to interact with Naruto. Given their complex relationship, Sasuke might be either supportive or skeptical of Naruto's newfound power. Sakura could also be involved, perhaps trying to heal Naruto if the dark power has negative effects on him. Kakashi would surely step in as well, using his wisdom to guide Naruto and make sure he doesn't lose himself in the darkness.
Sasuke would be a likely character to interact. Given their complex relationship throughout the Naruto series, Sasuke might be suspicious or intrigued by Naruto's control over Zetsu. Their interactions could range from confrontations to reluctant teamwork.
Obviously, Koyuki herself would be a main character to interact with Naruto. She might show him around her place, introduce him to her people. Also, any of her loyal guards or advisors could interact with Naruto. They could be initially suspicious of him but then grow to trust him as they see his good intentions.
Naruto and Aang would be the most obvious ones. They are the main characters in their respective worlds.
Obviously, Sasuke would still be a major character she interacts with. Their relationship could be even more complex now that Naruto is a girl. Sakura might also have a different dynamic with Naruto. Instead of seeing her as a rival for Sasuke's attention, they could become closer friends and train together more often.
Kakashi could also be a character involved in interactions. His calm and observant nature would make him a good mediator between the two groups. He might be interested in learning about the monster musume's abilities and how they could potentially be used in the ninja world. Rock Lee might also be a candidate. His enthusiasm and determination could be an interesting contrast to the monster musume, and he could potentially learn new fighting styles from them or teach them his own.
Well, in the 'naruto lifts thor's hammer fanfic', apart from Thor, other Asgardians like Heimdall could interact with Naruto. Heimdall, with his all - seeing ability, might have seen Naruto's worthiness from afar. The Hulk could also be involved. Imagine the chaos if the Hulk got jealous of Naruto having the hammer. And from Naruto's side, Kakashi could be there to guide Naruto on how to handle this new power that comes from a different world.
Iron Man is another candidate. Tony Stark's technology and Naruto's ninja techniques could be a great contrast. They could learn from each other. Stark might be interested in Naruto's chakra - based powers and try to replicate them in some way, while Naruto could be amazed by Stark's high - tech gadgets.
Probably Naruto and Tracer. Naruto is always eager to meet new people and make friends, and Tracer's curious and friendly nature would make her approach Naruto. They could start by comparing their abilities. Naruto would show off his Rasengan while Tracer might do a quick display of her blinking ability.
Definitely Naruto and the Punisher first. Naruto would be intrigued by the Punisher's methods and would try to understand his motives. It's also possible that Sakura could interact with the Punisher. She's a strong - willed character, and she might try to either stop the Punisher if she thinks his actions are too extreme or help him if she sees the good in his goals. And Jiraiya might also be a character who could cross paths with the Punisher. Jiraiya's worldliness and his own sense of right and wrong could lead to some deep discussions between them.