It could be an exiled shinobi from a far - off land. Maybe they were wrongly accused in their own village and had to flee. They then come across Naruto and see in him the potential for change in the ninja world, so they decide to raise him with their own set of values.
Well, the plot might center around the relationship between the OC and Naruto. The OC could be from a different ninja clan with its own secrets. As they raise Naruto, they might expose him to a new world view that challenges the traditional shinobi ideology in Konoha. This could lead to Naruto having to make some tough choices between the old and the new ways, and his journey would be full of unexpected twists and turns.
One possible scenario in this fanfiction could be that Naruto grows up with a more balanced upbringing. Tsunade might teach him medical ninjutsu and how to control his emotions better. Jiraiya, on the other hand, would surely train him in powerful combat techniques and in the ways of the sage. Naruto would probably be more mature and well - rounded at an earlier age, with a combination of Tsunade's tough love and Jiraiya's adventurous spirit guiding him.
One possible scenario in this fanfiction could be that Naruto grows up with the Namikaze Clan's unique jutsu training methods. He might inherit some of Minato's (a Namikaze) speed and intelligence in combat at a much earlier age. This could lead to him being a more confident and skilled ninja from the start, as the Namikaze Clan has a reputation for their strong abilities.
There might be a fanfiction where the oc raised by an asari is a human. The asari raises the human oc in a more peaceful and spiritual asari colony. The human oc then has to deal with the clash between human values and asari values as they grow up. They might struggle with concepts like the asari's more fluid view of relationships compared to the human monogamous ideals, but in the end, find a way to blend both cultures in a unique way.
In a Naruto - raised - Jedi - and - Sith fanfiction, Naruto would bring his unique perspective. His own experiences of being an outcast and then a hero in his world could shape how he raises these Star Wars characters. He might introduce the concept of teamwork like in his ninja teams to the Jedi, who already have a sense of community. With the Sith, he'd be faced with a huge challenge as the Sith ideology is based on self - gain and power - hunger. Naruto could use his own story of facing powerful enemies and not succumbing to evil to try and steer the young Sith away from the dark path.
In this fanfiction, Lulu is likely a character who has the task of raising Naruto. She could be from a different realm or have a very different background from the Naruto universe. Maybe she's a sorceress or a wise woman with her own secrets and powers that she imparts to Naruto as he grows up.
If Naruto was raised by the Straw Hats, he'd probably be a very different person. He might be more carefree like Luffy. For example, he'd be used to the wacky adventures on the Grand Line. His ninja skills could blend with the pirates' combat styles, creating some really unique fighting techniques.
Naruto would likely be more confident. With the Sannin as his guardians, he'd have access to top - notch training and knowledge. He might not have the same insecurities as in the original series. For example, Tsunade could help him with his self - esteem, Jiraiya with his understanding of the ninja world, and Orochimaru (in a reformed way) with his knowledge of forbidden jutsu, making him a more well - rounded and confident shinobi.
His relationship with Sasuke would likely be very different. Without the shared experiences in Konoha, their initial rivalry might not be as intense. Naruto might not be as desperate to bring Sasuke back. And his relationships with his other Konoha friends like Sakura and Kakashi would also change. He'd be more connected to Yugito's friends and allies instead.