One possible reason could be in the realm of artistic interpretation in the fanfiction. The author might want to explore a different aesthetic or a unique plot where Naruto has some physical or behavioral traits similar to Orochimaru for shock value or to create a new kind of character dynamic.
It makes Naruto seem more mysterious. Since Orochimaru is a rather enigmatic and often villainous character, Naruto looking like him in the fanfiction gives him an air of mystery that he doesn't typically have in the original series. People reading the fanfiction might start to question Naruto's true nature.
Yes, in some fanfictions Naruto can be depicted as a prodigy similar to Orochimaru. Fanfic writers often take creative liberties to show Naruto with Orochimaru - like intelligence and skills in areas like jutsu creation or rapid learning of advanced techniques. This can make for very interesting and unique storylines.
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.
His friends would be very confused and probably worried. They know Orochimaru as a dangerous and untrustworthy person. So, if Naruto starts acting like him, they might think something is seriously wrong with Naruto. For example, Sasuke, who has his own history with Orochimaru, would be extremely suspicious and might even turn against Naruto for a while.
Well, it often delves deeper into Orochimaru's character. In the original Naruto, he's a bit of an enigma. Fanfiction can give more backstory and motives. For instance, his obsession with immortality could be explored more fully.
A possible plotline could be Orochimaru's redemption. He realizes the error of his ways and joins Naruto in protecting the ninja world. He could use his vast knowledge of jutsu and forbidden arts to help Naruto against new threats.
One possible reason could be Naruto's unique power. Naruto has the Nine - Tails within him, which is an extremely powerful and mysterious force. Orochimaru, being a character always interested in power and forbidden jutsu, might be obsessed with Naruto in fanfiction because he wants to study or even obtain that power for himself. Also, Naruto's strong - willed personality and his ability to change the people around him could be fascinating to Orochimaru who has always been somewhat of an outcast in the Naruto world.
The relationship could be very complex. Orochimaru might still have his devious side, but with Naruto as his friend, he would try to control it. Naruto would be the moral compass for Orochimaru. They could have deep conversations about life, power, and the ninja way. Naruto might even convince Orochimaru to rejoin the village, and Orochimaru would be like a secret weapon for the village, with Naruto being the only one who can truly trust him. They would support each other in battles, with Naruto's brute strength and Orochimaru's cunning strategies.
One consequence could be a shift in the power balance among the ninja villages. Since Orochimaru was a powerful and feared figure, his death might cause some chaos as his former allies or subordinates try to either avenge him or claim his resources. For example, some of his secret labs and experiments might be up for grabs, leading to potential conflicts.
Yes, there are quite a few. You can start by looking on fanfiction.net. There are stories that explore Orochimaru's past in more detail, his motives, and his relationships with other characters in ways that the original Naruto series might not have fully covered.