A really interesting plot might be that Fem Minato has a special ability that she passes on to Naruto. This ability could be related to time - travel, and together they go back in time to change certain events in the Naruto universe. Or it could be that Fem Minato was trapped in a genjutsu all these years, and Naruto is the one to break it. Then they work together to save the village from a threat that was created while she was trapped.
There are indeed. Some fanfic writers are more interested in creating a story around the unique dynamic between Naruto and Fem Minato that doesn't involve any inappropriate content. For example, they could write about how Fem Minato's presence changes Naruto's journey in the ninja world. It could be about her passing on her skills and wisdom to Naruto, or how they interact with other characters in the series in a new and interesting way.
A plot could involve Female Naruto being an outcast in the village because of her different way of doing things. Minato, as the Hokage, takes an interest in her and decides to train her personally. He discovers that she has a unique chakra nature that no one has seen before. They embark on a journey to understand this chakra and in the process, they form a strong bond of friendship and mutual respect. Along the way, they face opposition from some of the more traditional villagers who are skeptical of Female Naruto.
The fem oc could be a time - traveler who has knowledge of future events. She tries to prevent a great disaster from happening in the Naruto world. Naruto at first is skeptical of her but as they start to work together and she shows him proof of future tragedies, he believes her. Their relationship develops as they race against time to change the future.
Well, a really interesting plot could be that Hidan gets amnesia and Naruto finds him. Naruto decides to help Hidan regain his memories, but as he does, he also tries to show Hidan a different way of life. Maybe Hidan starts to question his old beliefs. Also, a plot where they are both sent back in time and have to work together to prevent a great disaster in the Naruto world's past could be really cool.
One plot idea could be that Fem Percy discovers a new power that is somehow related to Hades' realm. She has to go to Hades for guidance on how to control it. This would lead to a series of interactions where they gradually gain respect for each other. For example, Hades could initially be skeptical of Fem Percy but as he sees her determination, he starts to help her more sincerely.
One idea could be that Naruto and Daenerys are brought together by a powerful magic or a prophecy. They initially misunderstand each other due to their different backgrounds. Naruto thinks Daenerys is too power - hungry, and she thinks he's a strange warrior. But as they face challenges together, like a new, powerful dark force emerging in both of their worlds, they learn to respect and trust each other. Their combined forces, Naruto's ninjutsu and Daenerys' dragons, prove to be a formidable defense.
One idea could be a Naruto and Harry Potter crossover. Naruto could be transported to the wizarding world and learn magic while also teaching his ninja skills to the young wizards. For example, he might teach them how to move stealthily like a ninja in the Forbidden Forest. Another could be a Naruto and Avatar: The Last Airbender crossover. Naruto's chakra control could interact with the bending arts. He could team up with Aang to fight common enemies, using Naruto's Rasengan and Aang's airbending to create unique combat strategies.
One plot idea could be that Fem Kiba discovers a new jutsu that only Naruto can help her perfect. They go on a journey together to different hidden villages in search of the knowledge and ingredients needed for the jutsu. Along the way, they face various enemies and make new friends. Another idea is that they are both chosen for a special mission that requires them to pretend to be a couple. As they pretend, they start to understand each other on a deeper level and form a real bond.
One idea could be that fem Naruto travels back in time and has to hide her identity from Minato at first. She could then gradually reveal herself and use her future knowledge to help Minato prevent some of the tragedies that occurred in the original timeline. For example, she might know about certain Orochimaru plots and stop them before they start.