Perhaps Naruto starts to question his own identity. Since he was abandoned by his family, he could be on a journey to discover his true heritage and in the process, his dark side grows as he faces many hardships and betrayals. He may then use his new understanding to either wreak havoc or find a way to forgive and move forward.
One possible plotline could be Naruto growing up on his own, learning survival skills in the streets of Konoha. He might become more distrustful of others at first. Another could be him seeking out his family's secrets on his own, leading to unexpected adventures. Maybe he'll find a new family in his friends, like Sasuke and Sakura, who support him in ways his biological family didn't.
One possible plotline could be Naruto growing up on his own, learning survival skills at a very young age. He might become more cynical towards the idea of family. Another could be that he meets someone who becomes like a surrogate family, and through this relationship, he starts to heal his inner wounds. He could also start to search for the reasons why his family abandoned him, leading to a journey of self - discovery.
One possible plotline could be Naruto discovers he has a dragon connection that his family feared, leading to his abandonment. As he grows, he befriends the dragon and together they seek revenge on those who wronged him. Another could be that the dragon is a guardian his family didn't understand, and Naruto has to learn to control the dragon's power to prove his worth and find his place in the world. Or perhaps the dragon was the cause of a family curse, and Naruto has to break the curse to reunite with his family.
One possible plotline could be Naruto growing up on his own, but then discovers some hidden secrets about his parents that change his perspective. Maybe he finds out they had no choice but to leave him. Another could be that Naruto, after feeling abandoned, decides to prove himself to the village in an even more extreme way, like taking on super dangerous missions at a young age.
Maybe in the fanfiction, Obito makes a deal with an enemy that Naruto sees as a betrayal. So Naruto, with his strong sense of loyalty to the village and his friends, decides to abandon Obito. This could lead to a series of events where Obito tries to redeem himself in Naruto's eyes.
One possible plotline could be that Naruto is constantly rejected by the village he is trying to protect. This betrayal and lack of acceptance could gradually turn him dark. For example, if the villagers start to blame him for every bad thing that happens, even when it's not his fault. Another plotline might involve Naruto losing someone very close to him, like Sasuke, in a way that he blames the shinobi world for. This could lead to him deciding to take revenge on the world and turn to darker methods of achieving his goals. Maybe he starts to use forbidden jutsu without hesitation, seeing it as a means to an end.
Perhaps Naruto, after being abandoned by Minato, falls in with a group of outcasts. Together they form a sort of family of their own. Naruto's natural leadership and kind heart start to shine through as he tries to protect this new family. As he uncovers more about his past and Minato, he has to decide whether to forgive his father or hold on to his anger. This internal struggle could be a major part of the fanfiction.
One possible plotline could be Naruto's search for his parents' identity. Even though they abandoned him, he might be curious about who they were and why they left. He could go on a journey, following small clues he discovers along the way. Another plotline could be his struggle to fit in the village. Without the idea of his parents being heroes of the village, he might face more discrimination than in the original story.
One possible plotline could be Harry feeling extremely depressed at first. He might isolate himself even more, spending long hours in the library or wandering the Forbidden Forest alone. Another plotline could involve him finding new, unexpected allies who help him grow stronger and more independent. For example, he could befriend some of the house - elves who have their own unique magic and knowledge.
Perhaps Naruto discovers some dark secrets about the ninja world that make him lose faith in the ideals he once held. He then uses his skills and knowledge to create his own order, ruling with an iron fist as a 'dark master'. He could also form alliances with other anti - hero or villainous characters from the Naruto universe.