Another plot could be a 'what - if' scenario. What if Sakura was the one chosen to be the Jinchuuriki instead of Naruto? The story could explore how Sakura would handle the power of the Nine - Tails, and how Naruto would support her. They would have to deal with the prejudice and danger that comes with being a Jinchuuriki, and their relationship would be put to the test as they face this new situation together.
A plot idea could be that Naruto and Sakura are the only two survivors of a major attack on Konoha. They have to leave the village and find a way to rebuild it while also facing the trauma of losing everyone they know. This would test their relationship and their will to keep going.
One interesting story could be where Naruto and Sakura go on a mission together and during their journey, they discover new feelings for each other. It might involve them sharing personal stories around a campfire at night, deepening their bond.
A scenario where Sakura gets injured and Naruto stays by her side throughout her recovery. During this time, they have deep conversations and Naruto's care for Sakura makes her realize she loves him. It's a very emotional and heart - warming scenario often seen in fanfictions.
A fanfiction idea could be that Sakura and Naruto are arranged to go on a long - term undercover mission together. During this time, they have to pretend to be a couple. As they act out this charade, they start to feel real emotions for each other. They discover new sides of each other and eventually fall in love for real.
Perhaps a story where Sakura is tasked with creating a new medical jutsu, and she needs Naruto's help for some reason. They end up spending a lot of time together in a secluded place, and as they work, their relationship blossoms. The lemon aspect could come in through the little flirtatious remarks and the growing physical closeness between them as they share their hopes, dreams and fears during this time.
There is a fanfiction where Naruto and Sakura time - travel back to the founding of Konoha. They use their modern - day knowledge and skills to help the early shinobi, and during this adventure, their relationship blossoms as they work side by side. It shows a different side of their dynamic as they interact with the founders of the village.
One plot idea could be that Sakura, while on a mission, stumbles upon Pein's base by accident. She tries to use her medical skills to heal some of the injured Akatsuki members there as a way to negotiate peace, which surprises Pein. Another could be a time - travel scenario where Sakura goes back in time and meets a younger Pein before he becomes the leader of the Akatsuki, and she tries to change his path. A third idea is that Pein captures Sakura to use her knowledge of medical ninjutsu for his own purposes, but Sakura gradually makes him see the value of life in a different way.
Maybe Tobirama discovers Sakura's chakra control abilities and decides to study her in order to improve his own understanding of chakra. This leads to a series of experiments and training sessions together, during which they develop a mutual respect for each other's skills and determination.
A more complex plot could be Sakura trying to bridge the gap between the Leaf Village and the Mist Village. As Mizukage, she initiates cultural exchange programs. This includes sharing medical knowledge from the Leaf and learning about the unique water - based ninjutsu of the Mist. Along the way, she faces opposition from traditionalists in both villages but manages to bring about positive change.
One interesting plot could be that Sakura, on a diplomatic mission to Suna, gets lost in the desert and is rescued by Gaara. This encounter leads to a series of exchanges where they both learn about each other's past traumas and how they've overcome them. Another idea is that they team up to fight a new common enemy that threatens both Konoha and Suna, during which they develop a deep respect for each other's skills.