Well, perhaps the story could revolve around a tournament. Naruto, with his Hercules strength, enters this grand tournament. He has to face opponents who are also extremely powerful. His strength gives him an edge, but he also has to learn to control it. Along the way, he meets new allies and they all have different motives related to the tournament.
Perhaps it's related to some ancient ninja art or a hidden power within Naruto himself that gets awakened. In the Naruto universe, there are often latent powers waiting to be discovered. This Hercules - like strength could be tied to his Uzumaki heritage or some long - forgotten jutsu. He may initially struggle with this new power, not knowing how to fully utilize it without causing harm to himself or others. But as the story progresses, he learns to master it.
One possible plot could be that Naruto discovers a hidden power within himself that unlocks the Rinnegan. This new power could make him face new and even more powerful enemies. He might have to learn to control the Rinnegan's abilities, which are different from his normal chakra powers. For example, the Rinnegan can allow for space - time manipulation. Naruto would struggle at first, but with the help of his friends, he would gradually master it and use it to protect the Hidden Leaf Village from a new threat that only the Rinnegan - powered Naruto can defeat.
Perhaps in the fanfiction, the pacifier is a magical item. It could be that Naruto discovers the pacifier and when he uses it, he gains some sort of unique power. For example, it might allow him to communicate with animals in a new way or give him enhanced strength but only when the pacifier is in his mouth. This would lead to some interesting situations where he has to keep the pacifier safe while using its power to fight enemies.
Well, perhaps in this fanfiction, Naruto acquires Kamui due to some sort of strange chakra experiment gone wrong. And then he has to learn to control it quickly. He could start by training with Kakashi, who has experience with Kamui. Together they figure out new ways to combine Naruto's regular jutsu with the Kamui ability, like making a Rasengan that can be teleported right into the enemy's chest using Kamui.
The plot could be about Naruto's little brother growing up in Naruto's shadow. He might struggle to find his own identity while constantly being compared to Naruto. Maybe he has different ninja abilities that are overlooked at first because everyone is so focused on Naruto's power.
One possible plot could be that Naruto discovers he has a Byakugan eye through some strange encounter or experiment gone wrong. This new power could initially be a source of confusion for him as he tries to figure out how to control it. He might seek out the Hyuga clan for help, and there could be a whole arc about him learning the ways of the Byakugan while still maintaining his own unique ninja style.
The plot could involve Naruto being sent to an alternate dimension where the blue Rinnegan is a common power among a group of powerful beings. There, he has to learn to use his blue Rinnegan to survive and also to find a way back home. Along the way, he meets different characters who teach him unique ways to harness the power of the blue Rinnegan, and he returns to his world with new skills and knowledge.
One possible plot could be that Naruto discovers a special face mask with hidden powers. For example, it might enhance his senses when he wears it, allowing him to detect enemies from a greater distance. This could lead to new adventures as he has to figure out how to control and use these new powers while still being himself.
In a fanfiction, if Naruto has the Jagan Eye, it could change his relationships with his enemies too. For example, Orochimaru might be more interested in Naruto now. He could try to manipulate Naruto into using the Jagan Eye for his own evil purposes. Naruto, on the other hand, would be determined not to let the power corrupt him and would use it to protect the Hidden Leaf Village and the whole ninja world from new threats that are emerging because of his new power.
The fanfiction could involve Naruto's Golden Rinnegan being the key to a long - lost prophecy. He might find out that his new - found power is the only thing that can stop an ancient evil from awakening. Along the way, he would have to learn how to use the different abilities of the Golden Rinnegan, like being able to see the true intentions of people just by looking at them, which would help him in making allies and avoiding traitors.