I'm not sure about a specific 'naruto has one for all fanfic' to recommend off - hand. You could try searching on fanfic websites like Archive of Our Own or FanFiction.net. There are likely some creative crossovers out there that combine the Naruto universe with the concept of One for All from My Hero Academia.
It would probably be really exciting. Naruto with the power of One for All could have some amazing new abilities. He might be able to use chakra in ways that are similar to how One for All is used in My Hero Academia, like enhancing his physical strength even more than he already can with his ninja skills.
A likely main character could be a young ninja who discovers he has the 'One for All' power. He would be on a journey to understand and control it, while also dealing with the normal challenges of being a ninja in the Naruto world, like training and making friends.
One interesting plotline could be the exploration of how the 'One for All' power from My Hero Academia would interact with the Naruto universe. For example, how a character with 'One for All' might face off against powerful ninjas. Maybe they use the power in unique ways during battles, like combining it with chakra-based jutsus.
The students of UA High School would be really curious about Naruto's powers. Deku, for example, would probably be constantly asking Naruto about how his chakra works. And Naruto would be amazed by the Quirks of the heroes. He might try to figure out if there's a way to combine his jutsu with their Quirks.
In the 'All For One Gravely Injured but Escaped Fanfic', it's likely that the plot was set up in a way that put All For One in a vulnerable position. This could be due to a betrayal from within his own ranks or a new, powerful force emerging in the fanfic's universe. His injury was so grave that it seemed like the end for him, but he escaped. Maybe he had a secret passage or a teleportation device that he used at the last moment. He's a smart and resourceful villain, so he'd find a way out even when things look really bad.
One idea could be a crossover where Naruto's world is invaded by villains from Hero Academia led by All for One. Naruto and his friends team up with the heroes from Hero Academia to fight back. They could learn new techniques from each other, like the heroes learning chakra control from Naruto.
Well, of course, the main character is 'him'. But there could also be other important characters like his mentor who guides him on his journey. This mentor could be an old and wise figure who imparts valuable knowledge.
Well, in some fanfics, he might obtain them through some ancient ninja magic. Maybe he discovers a hidden scroll or a long - lost temple that grants him the power of all doujutsu.
Sasuke would be very suspicious at first. He's always been cautious about Naruto's new powers, and this one, which has the ability to take other people's powers, would make him wonder if Naruto was going to change. Sakura would be worried about the moral implications. She'd try to talk to Naruto about using it for good. Kakashi, on the other hand, would be more understanding. He'd see it as just another power Naruto has to learn to control and would offer his guidance on how to use it responsibly.