Well, in this 'naruto gets one for all fanfiction', a great plot could be that Naruto gets One for All and it starts to attract the attention of villains from both the Naruto universe and the My Hero Academia universe (where One for All comes from). He has to deal with new threats that are after this power. Meanwhile, he tries to train with his new power secretly so as not to alarm his village too much. But of course, his friends start to notice something is different about him.
In the 'naruto gets one for all fanfiction', an interesting plot might be that Naruto gets One for All during a strange encounter with a mysterious figure. This new power makes him question his own identity and purpose. He wonders if he's still the same ninja he was before. As he tries to master One for All, he also has to face the fact that some in his village might see this new power as a threat. So, he has to find a way to prove that he can use it for the good of the village while also exploring the limits of this foreign power.
One possible plot could be Naruto suddenly obtaining the One for All power. He might struggle at first to control it as it's a very different kind of power from the chakra he's used to. His friends would be both amazed and a bit worried. Naruto could then try to incorporate this new power into his fighting style, perhaps creating new jutsu that combine his ninja skills with the raw strength of One for All.
One possible plot could be that Uraraka struggles to control the new power of One for All at first. She might accidentally use it in inappropriate situations, like floating everything in her dorm room. But as she trains hard, she gradually masters it and uses it to save her friends in a big battle against a powerful villain.
Perhaps in the fanfiction, Aizawa gets One For All and decides to keep it a secret. He then starts training in isolation to master it. As he trains, he discovers new aspects of the power that are different from what previous users experienced, due to his own unique quirk and personality. He might use it to secretly protect his students from threats that are beyond the scope of his normal abilities.
Maybe Kakashi could still be his mentor. Even though One for All is a new and different power, Kakashi is very experienced. He could help Naruto understand how to incorporate this new power into his overall combat strategy. Kakashi would be able to analyze the power and give Naruto advice on how to train with it while still relying on his ninja skills.
One possible plot could be Naruto getting married to a character from another anime, like Sakura from his own world crosses over to the world of One Piece and marries Luffy. This would create a lot of chaos as Naruto tries to adapt to the new world while also dealing with his new relationship. He could use his ninja skills in the pirate world, and there would be a lot of comical and action - filled situations.
In a 'naruto gets pregnant fanfiction', perhaps there is a powerful enemy who casts a spell on Naruto. This spell not only endangers his life but also has the side - effect of making him pregnant. The story could then revolve around Naruto trying to find a way to reverse this while also dealing with the reactions of his friends and the village.
The plot could revolve around Naruto being entered into a ninja beauty contest by Sakura as a joke. But Naruto, being Naruto, decides to take it seriously. So, he gets a total makeover. He starts training not just in combat but also in poise and grace. His makeover includes learning how to groom his hair better, wearing more refined ninja clothing, and even learning some basic etiquette. Along the way, he discovers a new side of himself and also manages to change some people's perception of him in the ninja world.
Well, it could be that Naruto discovers a hidden Pokemon in the Hidden Leaf Village. This Pokemon might have some special powers related to chakra. He then decides to train this Pokemon and enters Pokemon battles using his ninja strategies. He could also meet other Pokemon trainers who are interested in learning his ninja ways in exchange for Pokemon training tips.
One possible plot could be that Naruto discovers he has a hidden bloodline that gives him the ability to control time on a small scale. He has to learn to master this new power while keeping it a secret from his enemies. With this new bloodline, he could rewind a few seconds during battles to avoid attacks or foresee his opponents' moves.
In a fanfiction with such a title, it might be about Naruto coming across a character who is wrongly enslaved in a hidden part of the ninja world. Naruto, with his kind heart, decides to fight against the system that allows this slavery and in the process, the 'slave' character might end up being a great asset to Naruto in his future adventures, but not in an actual master - slave relationship but more of an equal partnership born out of mutual respect.
One possible plot could be that Naruto discovers a magical sword. This sword might have special powers like being able to cut through any jutsu. He then has to learn how to master it, which could involve going on a journey to find an old hermit who once used the sword. Along the way, he faces challenges from enemies who also want the sword for their own evil purposes.