Naruto could be related to Orochimaru in a fanfiction through a family - like bond. Maybe Orochimaru has a past connection to Naruto's family that was previously unknown. It could be that Orochimaru had a debt to Naruto's father or some other relative, and this leads to an unexpected relationship where Orochimaru feels obliged to protect or guide Naruto in some way.
Another way they could be related in fanfiction is through a shared enemy. They might be forced to team up against a common foe that threatens both of them. This alliance could develop into a more complex relationship where they start to understand each other better, and in a sense, become related in their fight against the same danger.
Well, in some versions, Naruto might use his new and improved Rasengan techniques. He could have combined it with his Sage Mode powers to overpower Orochimaru. Maybe he also uses his quick thinking and the element of surprise, since Orochimaru is always so full of his own schemes.
In some fanfictions, Naruto defeats Orochimaru by mastering a new and powerful jutsu. This jutsu could be something he discovers on his own during intense training, allowing him to overpower Orochimaru's snake - like techniques.
In fanfiction, Naruto might be shown as having a similar thirst for knowledge as Orochimaru. He could be constantly seeking out new jutsus and ways to improve his skills, just like Orochimaru was always interested in expanding his power through knowledge.
Well, it varies in fanfics. Sometimes Naruto could have outsmarted Orochimaru with strategic planning and teamwork with his friends.
Well, Orochimaru's immortality would mean that his influence would be long - lasting. He could continue to conduct his unethical experiments over a very long period. This might lead to the creation of new and dangerous ninja techniques or even new forms of life. In the long run, it could change the way ninja are trained and how the ninja world views power and knowledge. For example, some might start to see immortality as the ultimate form of power and strive for it at all costs. Naruto and his friends would have to constantly be on guard against Orochimaru's schemes.
In this kind of fanfiction, Naruto might have used his new and powerful jutsu that he developed secretly. Maybe it was a super - enhanced Rasengan with some special chakra nature added to it, which was strong enough to overpower Orochimaru.
One possible way could be in a crossover fanfiction where the magic systems of the Harry Potter universe and the ninja world of Orochimaru are combined. For example, Orochimaru might be interested in the magic of the Harry Potter world and try to study it. Maybe he could see the magic there as a new source of power or knowledge. Another aspect could be a character - perhaps a wizard - being sent to the Naruto world and having an encounter with Orochimaru, and through that, a connection between the two universes is established.
In some fanfictions, Orochimaru might develop a sense of loyalty towards Naruto. After being around Naruto for a while, he could see Naruto as someone worthy of his loyalty. This could lead to him being more open to working with the Hidden Leaf and helping Naruto in his various missions. He might even sacrifice his own interests to protect Naruto at times, which is a complete turnaround from his initial character.
Well, in some fanfictions, Orochimaru might use some forbidden jutsu. He could have combined his knowledge of resurrection techniques with some unique chakra sources. Maybe he found a way to reverse the death process by using the power of the snakes he has a connection with. For example, he could have used the regenerative abilities of the snakes' chakra to bring Naruto back to life.
Naruto could develop a new sense of determination. He might be determined to not let Orochimaru's experiments define him. Instead, he could use what has happened as a motivation to become stronger in his own way. He may also start to study more about the type of experiments Orochimaru was doing, not to replicate them, but to find ways to counter any future threats related to that kind of science.