Maybe Naruto has always idolized the Hokage in secret. He could be studying the ways of past Hokages on his own, trying to learn their leadership skills and jutsu. For example, he might be secretly practicing Minato's Flying Thunder God Technique because he admires his father so much.
Well, it could be that Naruto is secretly the Hokage in an alternate reality within the fanfiction. He might be leading the village in disguise, using his knowledge of the village and its people to make important decisions. He keeps it a secret to protect the village from potential threats that might target him specifically if they knew he was the Hokage.
Perhaps Naruto has developed a special chakra - based concealment technique. This technique would not only hide his physical identity but also any chakra signatures or auras associated with the Hokage position. He might use it when he is out and about in the village, so that even the most perceptive ninja wouldn't suspect that he is the Hokage.
It could be someone who wants to expose Naruto's secret. Maybe a rogue ninja who wants to use this information to create chaos in the village by making the villagers doubt Naruto's intentions.
He might face internal conflict. Naruto has always been an open and honest person, so keeping such a big secret could go against his nature. This could lead to him struggling with his conscience. Also, he would need to balance his normal life with his secret Hokage duties without raising suspicion. For instance, he can't always disappear suddenly to attend to Hokage business without people getting curious.
Sure. One idea could be that Naruto discovers a prophecy that if his Hokage - ship is made public too soon, it will bring great disaster to the village. So, he keeps it a secret. He secretly meets with village elders at odd hours and uses his clone technique to be in multiple places at once for village management. Another idea is that there's an impostor Hokage who is actually causing harm, and Naruto has to secretly take over the real Hokage duties to fix things without alerting the impostor.
Well, in this fanfiction, it could be that Naruto is secretly a huge fan of the Hokage legacy but for some reason, like he doesn't want to show off or he's afraid of not being good enough, he keeps it a secret. Maybe he secretly studies the great Hokages' deeds and techniques, trying to find his own path to the Hokage title while under the radar of his friends and villagers.
Well, it depends on the specific fanfiction. Some fanfictions might explore alternate storylines where Naruto doesn't become the Hokage at all. Maybe he decides to pursue a different path in life, like focusing on being a teacher or an explorer. However, in a large number of fanfictions, he does achieve his goal of becoming the Hokage because it's such an iconic and desired outcome for fans who want to see his journey to the top in different ways.
The fanfiction could be about Naruto's struggle to adjust to a normal life after being Hokage. He might feel a bit lost without the constant stream of paperwork and decision - making. So, he starts to explore his hobbies, like fishing. Meanwhile, he still has to deal with some remnants of old enemies who are trying to take advantage of his retirement, and he has to use his skills and influence in a different way to protect Konoha.
One possible plot could be that Naruto is somehow transported to a different timeline where he has to fight the Hokage for a misunderstanding. Maybe there's a villain who has manipulated events to make the Hokage think Naruto is a threat. So Naruto has to fight not only to prove his innocence but also to save the village from the real danger that the villain poses.
It could be the First Hokage, Hashirama. Naruto would be amazed by his powerful Wood - Style jutsu and his ability to create the village. He could learn about the original ideals behind the Hidden Leaf from Hashirama.
One idea could be Naruto facing a new and powerful enemy that challenges the very foundation of the Hidden Leaf while he's Hokage. He has to use his unique leadership style and ninja skills to protect the village. Another could be Naruto implementing new training programs for the younger ninjas, based on his own experiences growing up.