One possibility is that Naruto uses his wits and unique skills to deceive those who overly rely on the Sharingan. Maybe he creates false scenarios or uses his own abilities in a way that misleads Sharingan users into making wrong judgments.
Itachi, even though he is a very skilled Sharingan user. Naruto might come up with a clever plan to fool him. Maybe Naruto could use his understanding of Itachi's past and his relationship with Sasuke to create a situation where Itachi misinterprets what's going on. Also, other Uchiha clan members who rely heavily on the Sharingan could be victims. Naruto could study their common traits and weaknesses related to the Sharingan and use that knowledge to deceive them.
The plot could involve Ino being in a situation where she needs to understand the Sharingan to save a friend. For instance, if her friend was under the control of an enemy who had a Sharingan - based mind control. Ino would then seek out someone with knowledge of the Sharingan, like Kakashi. Together, they would try to break the mind control and in the process, Ino would learn a great deal about the Sharingan's capabilities.
One possible plot twist could be that Naruto's Sharingan has unique abilities not seen in the regular Uchiha Sharingan. Maybe it can combine with his Sage Mode in unexpected ways, like seeing chakra flows more clearly even in Sage Mode, enhancing his combat skills.
One possible plot twist could be that Naruto struggles to control the Sharingan at first. Since he's not from the Uchiha clan, the Sharingan's powers might act differently in him. For example, instead of the normal abilities like predicting movements, it might give him visions related to the Uchiha's past traumas. This could lead to Naruto having to deal with not only the power of the Sharingan but also the emotional baggage that comes with it.
One possible plot could be that Naruto discovers he has the ultimate Sharingan through some mysterious means. Maybe it was a hidden power passed down in his family that was dormant until a certain event triggered it. Then he has to learn to control this new power while still using his own unique ninja skills.
In this fanfiction, perhaps the awakening of the Sharingan gives Naruto an edge in battles that makes the female ninjas admire him even more. The plot might involve Naruto being initially confused by all the attention from the girls, but then gradually coming to terms with it. For example, Sakura could see him in a new light and Hinata might be even more smitten. And this new dynamic could lead to various adventures and challenges as Naruto tries to balance his relationships with his duties as a ninja.
In such a fanfiction, one possible plot could be that Naruto acquires the Mangekyou Sharingan through some kind of magical or experimental accident. Maybe a powerful enemy uses a jutsu that backfires and transfers the Sharingan to Naruto. Then Naruto has to learn to control its power while also facing the prejudice from those who fear the Sharingan's abilities.
One possible plot could be Naruto being abandoned not just by his village but also his family due to the mystery surrounding the Sharingan. Maybe his family had a connection to the Uchiha clan and feared Naruto's potential with the Sharingan. So they left him to fend for himself. As he grows, he discovers his family's secrets related to the Sharingan and has to struggle with his new - found powers and the feeling of abandonment.
One possible plot could be that Naruto discovers the Sharingan during a mission in a hidden part of the shinobi world. He then has to learn how to use it while keeping it a secret from his friends and enemies. As he masters it, he gains new insights into the Uchiha clan and their history.
In fanfiction, Naruto could get the Sharingan through a blood - related connection that is revealed later. For example, it could be discovered that he has some distant Uchiha ancestry that gets activated somehow. Maybe a powerful enemy's attack awakens this dormant Uchiha blood in him, and as a result, he develops the Sharingan. It could also be that a powerful sage or a new character uses their own unique powers to bestow the Sharingan upon Naruto for a specific purpose.