The plot might revolve around Naruto using the Godlike Sharingan to understand his own Uzumaki heritage better. Itachi, with his vast knowledge, could help Naruto make connections between the Sharingan and the secrets of the Uzumaki clan. Maybe there are hidden powers within Naruto that can be unlocked with the help of the Sharingan. They could go on a journey to find ancient scrolls or artifacts that are related to both the Uchiha and Uzumaki clans, and along the way, Naruto grows stronger not just in terms of combat ability, but also in his understanding of the ninja world's history.
One aspect of the plot could be Naruto's struggle to control the new power. The Godlike Sharingan is a powerful and potentially dangerous ability. Naruto might initially have a hard time adjusting to seeing the world through the Sharingan's perspective. Itachi would then have to guide him through this process. Also, they could face enemies who are after the power of the Godlike Sharingan that Naruto now has, leading to intense battles where Naruto has to use his new skills and the knowledge Itachi has imparted to him.
One possible plot twist could be that Naruto, despite being trained by Shisui and Itachi, struggles with the darker aspects of their teachings. For example, he might find it hard to adapt to their more stealthy and sometimes morally ambiguous tactics. Another twist could be that an enemy figures out Naruto's new training sources and uses it against him by setting traps based on the Uchiha's fighting styles. Also, Naruto could discover a hidden connection between the Uchiha clan and his own Uzumaki heritage during the training process that changes his perspective on his powers and destiny.
Naruto's character would develop a new sense of self - confidence. Having the Godlike Sharingan and being trained by Itachi would give him a feeling of being a part of something greater. He would no longer be just the 'loud - mouthed underdog' but a powerful ninja with unique abilities. However, he would also have to deal with the new expectations that come with this power. He might struggle with the idea of whether he is still the same Naruto or if the power has changed him too much. This internal conflict would be an important part of his character development as he tries to find a balance between his old self and the new, more powerful version of himself.
In this fanfic, perhaps Naruto's godlike powers would be a result of Danzo's unorthodox training methods. Danzo could push Naruto to his limits, making him a force to be reckoned with. Naruto might also have to deal with the distrust of his friends at first, as they are suspicious of his association with Danzo.
In this fanfic, perhaps Deadpool's training makes Naruto question his own beliefs and values. Naruto has always been about friendship and protecting the village, but Deadpool's chaotic nature might make him see things from a different perspective. As Naruto becomes more 'godlike', he has to balance his newfound power with his original ideals, and this internal struggle could be a major part of the story.
Well, perhaps Naruto, with his natural talent, is taken under Merlin's wing. Merlin could teach Naruto some really powerful magic or unique combat strategies. Maybe Naruto becomes even more powerful than in the original series and uses his new skills to protect his village in ways no one expected.
Well, the plot could involve Naruto reaching new levels of power under Scorpion's training. Maybe Scorpion teaches Naruto some unique and deadly jutsu that Naruto combines with his own skills. For example, Scorpion might show Naruto how to use puppet - related techniques in combat, which Naruto could then adapt to his shadow clone jutsu, creating an army of puppet - controlled clones.
The plot could involve Naruto learning Darkseid's powerful and dark techniques. Maybe he struggles with the morality of using such dark powers while also becoming extremely powerful. For example, he might use his newfound strength to protect Konoha in a way that scares his friends at first because of its intensity.
Well, it could be that Itachi trains Naruto to better control his chakra. Maybe Itachi sees potential in Naruto to bring peace to the ninja world and decides to pass on his unique skills like the Sharingan's insights on combat.
Well, in a fanfiction where Naruto is trained by Itachi in Sharingan, Naruto would first have to adapt to the new power. Itachi would probably start with the basics of how to activate and control the Sharingan. Since Naruto is used to his own physical and chakra - based training, this would be a challenge. However, with Itachi's guidance, he could master it. Once he does, he could use the Sharingan to analyze his opponents' fighting styles better. For example, he could quickly figure out the weaknesses in an enemy's jutsu and counter them effectively. He could also use the Sharingan's visual prowess to enhance his reaction time during battles.
One possible plot could be that Itachi, seeing Naruto's potential and his importance for the future of the Hidden Leaf, decides to secretly train him. Itachi might teach Naruto advanced jutsu, especially those related to chakra control and unique Sharingan - inspired techniques. Naruto, under Itachi's tutelage, would grow not only in power but also in his understanding of the ninja world's complex politics and the Uchiha clan's history.