Perhaps Naruto travels back in time with the intention of not only saving Kushina but also changing the entire future of the Hidden Leaf. He could use his influence to bring about peace between the clans earlier. He might also introduce some new ninja techniques from his time to the past, which could help in the fight against the Nine - Tailed Fox. By saving Kushina, he could ensure that she lives to raise him properly, which would have a huge impact on his own life and the future of the village.
One possible plotline could be that Naruto discovers a powerful time - travel jutsu. He decides to use it to save his mother Kushina from her tragic fate. Maybe he arrives in the past just in time to prevent the Nine - Tailed Fox attack on the village that led to Kushina's death. He could team up with a younger version of his father Minato and together they fight off the masked man who was behind the attack.
Perhaps Fem Naruto travels back in time and teams up with a younger version of Kakashi. Together, they try to save Obito. Fem Naruto uses her female intuition and Kakashi uses his strategic mind. They face many challenges along the way, like dealing with the hidden motives of other ninja clans who might not want Obito to be saved as it could disrupt their own power plays.
One possible scenario could be that Kushina's spirit somehow manifests and guides Naruto in a difficult battle. She might use her chakra to give him an extra boost or share some long - forgotten family jutsu with him. Another scenario could be that in a time - travel fanfic, Kushina actually gets to be there in person to save Naruto from a dangerous situation in his childhood that he originally faced alone, like the time he was ostracized in the village as a child.
Another plotline could involve the Shinigami within Naruto having some sort of mission related to Kushina. The Shinigami might need Naruto to help Kushina fulfill an unfinished task. As Naruto and Kushina work together, they also get to bond on a deeper level, with Naruto learning more about his mother's past and her love for the village and his father.
A plotline could be that Naruto has to keep his true parentage a secret for a long time. This secrecy adds to his internal conflict as he tries to fit in with the other ninjas. As the son of Kyuubi and Kushina, he may be hunted by certain groups who want to either use his power or destroy it. He then has to go on a quest to find out more about his parents and his own identity, all while fending off these threats.
One possible plotline could be that Naruto is somehow transported back in time and has to fight Kushina in a misunderstanding. Maybe he's mistaken for an enemy due to some time - warp magic or jutsu gone wrong. Another could be a scenario where Kushina is controlled by an evil force, and Naruto has to fight her to break the control. Or perhaps it's a sparring match in a dream world where Naruto and Kushina test each other's skills without real harm.
One possible plotline could be that Naruto discovers some long - lost secret about his mother Kushina and decides to leave the village with her to explore this mystery further. Maybe they are on a quest to find some hidden power or knowledge that is related to Kushina's Uzumaki heritage.
One possible fanfiction could be that Fem Naruto uses her knowledge of future events to prevent Obito's fall into darkness. Maybe she travels back in time and intervenes in the moment when Obito witnesses Rin's death. She could use her ninja skills and her unique understanding of Obito's pain to stop him from joining the wrong side.
One possible plotline could be that Naruto is in a life - threatening battle against a powerful enemy. Gaara arrives just in time, using his sand powers to shield Naruto from a fatal attack. Then they team up, with Gaara's strategic thinking and Naruto's unwavering determination, they gradually turn the tide of the battle.
One possible plotline could be that Kumo is under attack by a powerful and mysterious enemy. Naruto, being the hero he is, hears about it and rushes to save the day. He might use his newfound Sage Mode powers or his ability to connect with the Nine - Tails to fend off the attackers.
One possible plotline could be that Naruto arrives just in time to stop Haku from sacrificing himself for Zabuza. He uses his shadow clone jutsu to create a distraction and then manages to pull Haku out of harm's way. Naruto then tries to convince Haku that there is more to life than being a tool for Zabuza.