Naruto himself is often involved. Since it's a Naruto fanfiction, the main character of the original series is likely to play a big role. He might interact with the oc, perhaps helping them adjust to the ninja world. Sasuke is also a popular character in these fanfictions. His cool and brooding nature can create interesting dynamics with the oc.
In 'oc reincarnation naruto fanfiction', characters like Itachi are quite popular. His complex backstory and powerful abilities make him an interesting character to involve. The oc might have a chance to interact with him and learn from his experiences. Also, Hinata is often in these fanfictions. Her kind and gentle nature can contrast with the oc's sometimes out - of - place personality, leading to some interesting character interactions.
Naruto is often still a main character in such fanfiction. Since he has a strong connection with the tailed beasts already. Sasuke might also be involved as he is another important figure in the Naruto universe. And of course, the new hosts of the reincarnated tailed beasts would be main characters as well.
Twilight Sparkle is often involved. Since she's a powerful and intelligent unicorn (later an alicorn), her reincarnation can bring about many interesting storylines. Maybe she reincarnates with a different set of powers or a different personality trait. Rainbow Dash is also popular. Her reincarnation could explore how her speed and bravado are affected or changed in a new life.
Naruto himself is obviously very popular in these fanfictions as the main character. His decisions are the central focus. Sasuke is also commonly involved. Since Sasuke's actions and decisions often intertwine with Naruto's, fanfiction writers like to explore how different decisions from Naruto would affect Sasuke's path. For example, if Naruto made a decision that could sway Sasuke from his revenge - seeking journey.
Naruto is often involved. Since he has the ability to transform into the Nine - Tails in the original series, fanfiction might expand on this by giving him more shapeshifting abilities or different forms of the Nine - Tails transformation. For example, a more powerful and controlled version of the full - Nine - Tails form.
Sasuke is often involved. His powerful chakra and skills make him a natural fit for stories involving barriers. He could be trying to break through a powerful barrier or using his Sharingan to analyze and then counter a barrier technique. Naruto is also popular. His large chakra reserves could be used to power up or break barriers in unique ways.
Kakashi is another character that frequently shows up. His experience and cool - headedness make him a great character for a reborn character to interact with. The reborn character could learn from Kakashi or even teach him something new, creating an engaging relationship within the fanfiction story.
Naruto himself is often involved. Since Gear 4 is a power - up concept, it makes sense for Naruto, with his never - give - up attitude and strong chakra reserves, to be the one to either use or face Gear 4. He could potentially learn to incorporate it into his Rasengan techniques.
Naruto himself is often involved. Imagine Naruto henged into a powerful ancient sage form that no one has ever seen before. It would create a whole new set of adventures for him.
Obi - Wan Kenobi is frequently in these fanfics too. His wisdom and connection to Anakin make him an interesting character for reincarnation. He could be reincarnated to guide a new generation of Jedi, or perhaps to once again face off against an old enemy in a new form.
Well, Naruto and Sasuke are the central ones for sure. But other characters like Jiraiya might also be important. Jiraiya could have known something about Naruto's true nature as the reincarnation of Indra all along and his teachings could be seen in a new light. Additionally, the Kage of the different villages might also be main characters as they deal with the implications of Naruto's new status.