One possible interesting plotline could be the exploration of the Nidaime Otokage's relationships with other Hidden Villages. Maybe he had secret alliances or rivalries that are not fully explored in the original Naruto series.
The story could involve Naruto facing internal resistance in the Sound Village at first. Since he's an outsider becoming Otokage, some of the traditionalist ninja in the village might oppose him. But Naruto, with his charisma and strength, gradually wins them over. He could start by solving some long - standing problems in the village, such as food shortages or issues with the local ninja academy.
Power and leadership are common themes. Since the Otokage is a position of great power in the Naruto universe, fanfics often explore how the character in this role wields their power and what kind of leadership they provide.
Sometimes, characters from other villages might also be involved. Maybe a ninja from Konoha who has a special encounter with the Nidaime Otokage. This could lead to an interesting exchange of ideas or a conflict that drives the story forward.
His relationship with Sasuke would be very interesting. Since Sasuke has a past connection with the Hidden Sound Village, Naruto being Otokage could be a turning point in their relationship. They might work together more closely to rebuild and reform the village. Also, Naruto's relationship with the other Kages would change. He'd be seen as more of an equal now, and there could be more diplomatic meetings and collaborations between the villages.
One great 'naruto otokage fanfic' is 'The Rise of the Otokage'. It explores the journey of a character becoming the Otokage in a really engaging way, with lots of cool battles and political intrigue.
The villagers in the Hidden Sound Village would likely be in awe at first. Some might be skeptical, but as Naruto starts to show his leadership and use his godlike powers for the good of the village, they would come to respect him. In Konoha, his old friends would be proud of him, but also a bit sad that he's leading another village. Villains in the Naruto universe would probably be more cautious, knowing that Naruto's power as Otokage could be a major threat to their plans.
Well, it could be amazing. Naruto, with his godlike powers, would bring a new era to the Hidden Sound Village as Otokage. He might introduce new training methods inspired by his own growth in Konoha. His leadership could also change the village's reputation, making it more of a place of hope and power rather than its former more shadowy image. He'd probably have some epic battles against those who oppose the new direction he's taking the village in.
There could also be a fanfic where Otokage and Sakura are transported to a different dimension. In this new world, they have to rely on their unique skills and each other's strengths. Sakura's medical ninjutsu and Otokage's special jutsu combine in unexpected ways to overcome the challenges of this strange new place. They might meet new allies and enemies, and the story could explore how they adapt to this unfamiliar environment while maintaining their bond.
You can try fanfiction websites like Archive of Our Own. It has a large collection of fanfics from various fandoms, and there's a good chance you'll find some great otokage sakura fanfic there. Just use the search function to look for it specifically.