In fanfiction, Naruto as the Fifth Hokage would face external threats as well. Other villages might see his youth and inexperience as a chance to gain an advantage. He'd have to prove himself as a strong leader not only to his own village but also to the entire shinobi world. Internally, he'd need to deal with the village's finances and resources. With his big - hearted nature, he might overextend on projects to help the villagers, and then have to figure out how to balance the budget without sacrificing the well - being of the people.
Naruto might face the challenge of maintaining the balance between the different clans within the village. Each clan has its own interests and power dynamics, and as Hokage, he'd need to ensure fairness and prevent any clan from overstepping. Also, with his past as a bit of a troublemaker, some might not take him seriously at first.
One challenge could be dealing with the traditionalist shinobi who might not be on board with his more unorthodox methods. They may resist changes he wants to make to the village's training or governance.