One possible plotline could be Itachi teaching Naruto advanced jutsu techniques. For example, Itachi might show Naruto how to use his chakra more efficiently in combat, which could give Naruto an edge against stronger opponents. Another plotline could involve Itachi sharing some of the secrets of the Uchiha clan with Naruto, like the true nature of the Sharingan. This could lead to Naruto developing new strategies that combine his own abilities with what he's learned from Itachi.
In some fanfictions, Itachi trains Naruto to better understand the nature of pain and sacrifice. Since Itachi has experienced so much in his life, he could use those experiences to help Naruto grow not just as a ninja but also as a person. Itachi might also train Naruto in genjutsu countermeasures. Given Naruto's initial weakness in this area, Itachi's expertise could really boost Naruto's overall combat skills.
One possible plotline could be Kakashi teaching Naruto some super - advanced jutsu that Naruto then uses to surprise his friends in a sparring match. For example, Kakashi might teach Naruto a special lightning - style jutsu that Naruto masters and combines with his Rasengan.
Another plotline might involve Itachi protecting Naruto from the Akatsuki. Since Itachi has his own motives within the Akatsuki, he could use his position to keep Naruto safe from the other members who might be after the Nine - Tails. It would add a lot of tension and drama to the story, especially when Itachi has to balance his loyalty to the Akatsuki and his new - found role as Naruto's protector.
One interesting plotline could be the Kyuubi teaching Naruto unique and powerful jutsu that are not part of the regular ninja training. For example, it might teach him a special form of chakra control that gives him an edge in battles. Another plotline could be the Kyuubi helping Naruto understand the history of the ninja world from its own ancient perspective, which in turn helps Naruto make wiser decisions in his journey to protect the village.
One possible plotline could be Fem Itachi becoming Naruto's mentor. Since Itachi is highly skilled, she could pass on unique jutsu and strategic knowledge to Naruto. Another plotline might involve a romantic relationship between them, which would be a huge departure from the original story and would create a lot of drama as they navigate their feelings while dealing with the ninja world's challenges. Or perhaps Fem Itachi joins Naruto in his quest to bring peace to the ninja world, using her own methods and abilities to complement Naruto's.
One interesting aspect could be the growth of Sakura's skills under Itachi's training. Maybe Itachi teaches her some unique jutsu or ways to improve her chakra control.
In the fanfiction, Naruto could carry Itachi's legacy in the form of his Sharingan. Suppose Itachi, before his death, somehow transfers his Sharingan powers or knowledge related to it to Naruto. Naruto then has to figure out how to use this new ability in his own way. He might struggle at first, but eventually, he uses it to gain new insights into his enemies' moves and strategies, much like how Itachi used his Sharingan, and this helps him become an even stronger shinobi.
One plotline could be that female Naruto, with her unique perspective as a female in the male - dominated ninja world, tries to convince Itachi to break free from the chains of his past and the Akatsuki. She might use her own experiences of being an outcast in some ways to relate to him. It's a story about redemption and breaking free from one's dark past.
It could be that Hera is a powerful spirit or goddess in the Naruto universe who has been awakened. She sees potential in Naruto and decides to train him to reach his full potential. The plot might include Naruto facing challenges within himself as he tries to master the new skills Hera teaches him. There could also be a sub - plot where other ninja clans become suspicious of Naruto's new powers and training, leading to some conflict.
In some 'itachi meets sarada fanfiction', Itachi could be brought back to life temporarily. He and Sarada might go on a journey together to face a new threat to the village. During this journey, Itachi could act as a mentor to Sarada, teaching her how to handle difficult situations and how to use her Sharingan more effectively.
One interesting plotline could be Itachi arriving in a world where ninjutsu doesn't exist. He has to adapt his skills in a completely new way, like using his Sharingan for non - combat purposes such as detecting lies in a society based on politics and intrigue. Another could be Itachi in a world full of magical creatures. He might form alliances with some of them, using his strategic mind to navigate this new environment. And there could also be a plot where Itachi enters a world in the future with advanced technology. His ninja training gives him an edge in combat situations against high - tech weapons, and he has to learn about the new technology to fully utilize his skills.