One reason could be to test Konoha's security. Naruto might want to see if there are any loopholes in the village's defenses. So, he sends his clones to infiltrate and find out.
Perhaps it's a training exercise for the clones themselves. By infiltrating Konoha, they can practice their stealth and combat skills in a familiar yet challenging environment. Also, it could be related to some internal political situation in the fanfic where Naruto needs to know what's really going on in the village without revealing his intentions, so he uses clones to infiltrate.
It could be for a rescue mission. Maybe someone important has been captured or is in danger within Konoha, and Naruto's clones are sent to infiltrate and save that person without alerting the enemy or those who might oppose the rescue.
Well, one possible plot could be that Naruto's clones are sent on a secret mission to infiltrate Konoha for some benign reason, like to test the village's security measures. Maybe they discover some hidden weaknesses in the defenses that Naruto can then work on improving.
In some fanfics, Naruto's clones might use stealth techniques. They could disguise themselves as ordinary villagers or ninja, perhaps by using simple transformation jutsu. This way, they can move around Konoha without raising suspicion.
In a fanfic, if Naruto clones infiltrated Konoha, it could lead to chaos. The villagers might mistake the clones for the real Naruto causing confusion. They could disrupt normal daily activities and security measures in the village. Also, depending on the intentions of the clone infiltration in the fanfic, it could be a prank by Naruto, or it could be part of a more complex plot where someone else is controlling the clones to cause harm or gather information.
In fanfic, Naruto clones could use stealth techniques. They might disguise themselves as ordinary villagers or even as other ninja. By changing their appearance slightly, they could blend in and move around Konoha unnoticed. Another way could be to take advantage of the chaos during a festival or a big event in the village when security is more lax.
It could be Orochimaru. He's always been interested in Konoha's secrets and might have found a way to use Naruto's clones for his own purposes. He could be manipulating the clones from the shadows to steal forbidden jutsu scrolls or something similar.
One possible reason could be that Konoha has made decisions without considering Naruto's opinions. Maybe they have made policies that Naruto believes are unjust towards certain groups, like the treatment of the Uchiha clan in the past. Naruto, who values fairness and friendship, would be angry at such insensitivity from his village.
Another possibility is that he wants to explore the world outside Konoha on his own terms. Naruto has always been curious, and in a fanfic, he might decide that he can't be tied down to one place. He could be on a quest for self - discovery, believing that Konoha's environment is limiting his growth.
In some fanfics, Naruto might leave Konoha as a child because he feels ostracized. Since he's the jinchuriki of the Nine - Tails, many villagers fear and shun him. He could get tired of the constant cold shoulders and decide to leave in search of a place where he'll be accepted.
Yes, there might be such fanfics. One possible reason could be exploring alternative storylines. Writers might want to break the traditional view of Naruto's loyalty to Konoha to create more complex and unique plot twists. For example, they could be imagining a scenario where Naruto discovers some dark secrets about Konoha that make him question his loyalty.
Maybe there are some dark secrets within Konoha that he discovers in the fanfic. These secrets could be related to the treatment of certain individuals or something more sinister about the village's leadership. Discovering such things could make Naruto decide to leave in order to distance himself from the corruption or unfairness.