A plotline could involve Naruto being Nagato from the start, and how his different personality affects the events in the Akatsuki. Maybe he tries to reform the Akatsuki instead of fighting against it like the original Naruto. Also, it could explore how Naruto's friends would react to him being Nagato, and if they could still recognize his true self beneath the new identity.
One possible plotline could be Naruto taking on Nagato's role during the Pain arc. He might use Nagato's powers in a different way to bring peace to the village. Another could be Naruto having Nagato's memories and trying to understand his past and motives.
Maybe Nagato had a relationship with an Uzumaki woman before he became fully involved in the Akatsuki. This woman could have given birth to Naruto but for some reason, Naruto was separated from Nagato at a young age. It could be due to the chaos and danger that Nagato was getting into with his plans for the Akatsuki.
One possible plotline could be their adventures together before joining the Akatsuki. It could show how they discovered their powers and how they started to form a bond. Another plotline could be about their efforts to rebuild Amegakure after the war. They could be shown working together to bring peace and prosperity to their village.
Maybe the Hidden Leaf Village is haunted by a slasher who seems to be immune to normal ninja attacks. Naruto would have to not only rely on his physical abilities but also his wits and the help of his friends. He might discover that the slasher has a connection to an ancient and dark ninja art that was long forgotten. This could lead to a race against time to stop the slasher before more lives are lost in the village.
A possible plotline could also involve Naruto finding a hidden connection between himself and Mikoto. Maybe they are related in some way that was previously unknown. This discovery could lead to a whole new arc in the story where Naruto has to come to terms with this new family connection and what it means for his place in the ninja world.
In 'naruto is british fanfiction', one idea could be that the chakra system is related to some sort of British magic. Naruto might discover that his ninja powers have a connection to ancient British magic that was long forgotten. He could then go on a journey to uncover the secrets of this connection, meeting British - inspired characters along the way who either help or hinder him in his quest.
One possible plotline could be Naruto discovers Madara's past in great detail and starts to admire his strength and the vision he once had for the ninja world. He might study Madara's fighting techniques and incorporate some of his strategies into his own combat style. For example, Naruto could be intrigued by Madara's use of the Sharingan and try to find ways to counter it more effectively based on understanding Madara's own approach.
Well, one possible plotline could be that Naruto, being a fan of Megatron, tries to incorporate some of Megatron's leadership and combat strategies into his ninja battles. Maybe he starts using more aggressive and direct combat styles inspired by Megatron's fearless approach in battle. Another idea is that Naruto discovers an ancient ninja artifact that has a connection to Megatron's world, and this leads him on a journey to understand the similarities between his world and that of the Transformers. It could also be that Naruto, in his dreams, meets Megatron and they exchange ideas about power and leadership, which then influence Naruto's decisions in the real ninja world.
Perhaps Naruto becomes homeless due to some sort of misunderstanding or false accusation in the village. He then has to prove his innocence while living on the streets. He could start doing small acts of kindness for the villagers from the shadows, which eventually leads to the truth coming out and him being welcomed back home.
One possible plotline could be that Naruto somehow enters the Bleach universe and becomes a student of Urahara. He learns Urahara's unique skills and knowledge, like how to use his special inventions. This could lead to Naruto using some of Bleach - style powers in the Naruto world when he returns, causing a stir among his friends and foes alike.
In the fanfiction, it could be that Hanzo is seen as a symbol of the past that Naruto wants to revive. Naruto, with his optimistic and determined nature, tries to bring back the glory days associated with Hanzo. He might form a team dedicated to researching and implementing the forgotten arts of Hanzo. This could lead to a series of adventures where they face opposition from those who want to keep the past buried, but Naruto persists, believing that Hanzo's legacy can make the ninja world a better place.