Well, Naruto is known for his strong will and great power. In fanfiction, someone might ask Naruto for help because he has proven himself to be a reliable hero. He has saved the village multiple times, so people trust him to handle various problems, whether it's dealing with a new threat or helping with personal issues.
Maybe he has some personal grudges against the village. For example, he might have felt betrayed by the village in the past and that made him reluctant to offer help.
It could be that Konoha wants Naruto to use his influence to bring peace among different clans. Naruto is well - liked and respected, and his words might carry a lot of weight.
The village would have to rely more on other ninjas. Younger generations like Boruto and his friends would have to step up earlier. This could lead to a different kind of character development for them, as they are forced to take on more responsibilities without Naruto and Hinata's guidance.
Konoha could need Naruto's help in fanfiction to solve internal political problems. His status as a hero could be used to calm down disputes between different clans within the village. Since he is respected by all, he can act as a mediator and bring peace again. For example, if there are disputes over resources or leadership positions, Naruto's influence can be crucial.
One possible reason could be that Naruto feels betrayed by Konoha. Maybe he discovers some dark secrets about the village that make him lose faith in it. For example, if he finds out that the village elders were involved in unethical experiments or plots against his friends or family, he might not want to help.
Another plot development might be that Konoha asks Naruto to train the next generation of ninjas. Naruto, being the hero of the village, has a lot of skills and knowledge to pass on. He might face challenges in training the newbies, like dealing with their different personalities and abilities, but in the end, he manages to create a strong new generation for Konoha.
Well, in some fanfictions, Naruto might outsmart Konoha by using his unique knowledge of the village's secrets that others don't know. For example, he could use his understanding of the old tunnels under Konoha to his advantage in a situation where he needs to escape or gain an upper hand in a conflict.
It could also be due to a family issue. Maybe there is a conflict within the Uzumaki or Hyuga clans that makes them turn their backs on Konoha. For instance, if the village tries to interfere with the internal affairs of their clans in a negative way, they might decide not to offer their help anymore.