Perhaps Naruto becomes a nukenin in order to protect a secret that could endanger the village if it were to be exposed. He leaves the village to keep this secret away from those who might misuse it. In his journey as a nukenin, he could develop new jutsu in isolation, away from the constraints of the village's training methods.
Sasuke is often a popular character in 'nukenin naruto fanfic'. His complex backstory and his time as a sort of nukenin - like figure make him a prime candidate for such stories.
Well, in some 'nukenin naruto fanfic' stories, the missing - nin could form their own small group. This group might not be entirely evil but rather just trying to survive in a world that has shunned them. They could have unique abilities and codes that they follow, which make for an exciting read.
With his friends in Konoha, like Sakura and Kakashi, there would be a major shift. Sakura might initially be conflicted between her loyalty to the village and her friendship with Naruto. Kakashi, being a more experienced shinobi, might understand Naruto's reasons better but still be bound by his duties to the village. Overall, Naruto's departure as a nukenin would create a lot of emotional turmoil among his relationships.
One idea could be exploring the backstories of the nukenin in more detail. Maybe they had noble reasons for leaving their villages that were misinterpreted.
In a fanfiction where Naruto becomes a nukenin, it could be due to a prophecy that the village misinterprets. The village elders think Naruto will bring destruction, so they try to imprison or kill him. Naruto, not wanting to be a victim, escapes and becomes a nukenin. He then travels around, learning new jutsu from other lands and becoming stronger. Eventually, he might come back to the village to show them that their fears were unfounded, but by that time, he has become a very different ninja, with a new set of values and powers.
Add depth to the plot. Instead of a simple story of good vs bad nukenin, explore moral grey areas. Maybe the villages aren't always in the right when they label someone as a nukenin. And show how the nukenin deal with the consequences of their status in a complex way.
If Naruto becomes a nukenin, his relationship with the village elders would be completely severed. They would see him as a threat, and he would see them as unjust. With his peers, some might side with him, believing in his innocence. Others would follow the village's orders out of loyalty. His bond with the Nine - Tails would also change. The Nine - Tails might offer more support, seeing Naruto as an outcast like itself.
No, it's probably not popular. A good Naruto fanfic usually has a title that is both appealing and in line with the values of the Naruto community. This title contains a derogatory word which would likely turn off many readers, so it's not likely to gain much popularity.
It's not likely to be popular. The name itself is rather strange and not in line with the common types of Naruto fanfics. Popular fanfics usually have engaging storylines that are based on the existing Naruto lore, such as exploring new adventures for the characters, or delving deeper into their relationships. This 'fanfic' with its rather odd name doesn't seem to have the makings of a popular piece.