Another plot could be that Kurama's human form has a special ability that is unique even among his demon abilities. This ability attracts the attention of both good and evil forces, and he has to figure out how to use it without causing chaos.
Perhaps Godzilla in human form falls in love with a human. But he is constantly worried about endangering the person he loves because of his true nature. He has to battle his own kind, who see his relationship with a human as a betrayal, while also trying to keep his human love interest safe from the chaos of the kaiju world.
A possible plot is that Kurama's split personality actually has a soft side. This side of Kurama starts to merge with Naruto's kinder nature, creating a new personality within Naruto that is extremely empathetic. This new personality tries to find peaceful solutions to conflicts, which surprises both Naruto's friends and enemies. Another plot could be that Naruto's split personality caused by Kurama starts to have its own set of memories, memories that are related to Kurama's past and the ancient history of the ninja world, and Naruto has to figure out what these memories mean and how they can help him in his present situation.
One idea could be a story where the Bakugan in human form have to blend into human society while hiding their true identities. They could face challenges like going to school or getting a job without revealing their Bakugan nature.
One idea could be that the Kyuubi in human form becomes Naruto's mentor in secret. He teaches Naruto some ancient and powerful jutsu that were lost over time. This could give Naruto an edge in battles and also deepen his connection with the Kyuubi.
Well, in fanfiction, Kurama's human form could be a really imposing figure. He might have long red hair, just like his fox form's fur color, and bright, piercing eyes. Maybe he'd be tall and muscular, with a sort of wild, untamed look about him, still carrying that powerful presence that he has as a tailed beast.
One plot idea could be Kurama and Kushina teaming up to protect the Hidden Leaf Village from a new, powerful enemy. They could combine their unique abilities, like Kushina's strong chakra chains and Kurama's immense power, to fend off the threat.
One plot idea could be Amaterasu living among humans in her human form and using her divine powers secretly to help them. For example, she might use her ability to control nature to end a drought in a small village. Another could be her forming a friendship with a human artist who, unknowingly, starts to paint pictures that are prophetic due to her influence. A third idea is that she has to hide her identity from a group of hunters who are searching for any signs of the divine, as they believe the gods are causing chaos.
Often in fanfictions, Kurama's human form and Naruto have a more complex relationship. They could argue at times, especially when Naruto wants to take risks that Kurama thinks are too dangerous. But at the same time, they also share some really tender moments. For instance, Kurama's human form might comfort Naruto when he's feeling down about his past or his struggles with the village. They would have a deep bond that goes beyond just being a jinchuriki and a tailed beast.
One plot idea could be Kurama teaching Naruto some ancient and powerful jutsu that only he knows. Since Kurama has a vast knowledge of chakra and ninja techniques from long ago, he could pass on this knowledge to Naruto in a unique way, like through dreams or during their mental conversations.
One plot idea could be Naruto and male Kurama having to team up to face a new and powerful enemy that neither could defeat alone. They start to understand each other's powers and personalities better during the battle. Another could be Kurama teaching Naruto a new and unique form of chakra control that is exclusive to the nine - tailed fox. Or perhaps they go on a journey to discover the origin of Kurama's power and along the way, they form a deeper bond as friends.