I've read a fanfic where they time - travel and end up having to train the younger versions of themselves. It was really cool to see how Lee and Shikamaru interacted with their past selves. They had to be careful not to reveal too much about the future but also had to make sure their past selves grew stronger. You can probably find it by searching for 'Naruto Lee Shikamaru time - travel training' on fanfic websites.
The exploration of the Naruto world in a different time period is also a big draw. In a time - travel fanfic, we can see how the villages were in the past, what the relationships between characters were like before the main events of the Naruto story. Lee and Shikamaru can interact with characters who might be dead in their own time, like the early Hokages. It gives a whole new perspective on the Naruto universe.
Another concept could be Rock Lee traveling to a time before the founding of the Hidden Leaf Village. He could witness the origin of ninja clans and their unique fighting styles. This would give him a new perspective on his own fighting style and he could incorporate some of the ancient techniques into his taijutsu.
Well, one possibility is that Lee could use his knowledge of the future to prevent some of the tragedies in The Walking Dead world. For example, he might be able to stop certain characters from dying prematurely. He could also try to find a cure for the zombie virus much earlier if he travels back far enough. Maybe he'd team up with different groups in different time periods and change the power dynamics within the story.
Well, when it comes to Naruto time travel and Rinnegan in fanfics, it's often about exploring new storylines. Maybe Naruto himself gets the Rinnegan and travels back in time to train his younger self. This would make him a much more powerful ninja at an earlier stage and could completely change the power balance in the Hidden Leaf Village and among the other ninja villages as well.
If Rock Lee travels back in time, he might become more confident. For instance, if he goes back to his academy days, knowing all he has achieved, he would not be so self - conscious about his lack of ninjutsu and genjutsu. He could focus on improving his taijutsu even more and also help his younger self gain confidence.
One idea could be a story where Naruto and the Lee brothers team up for a special mission. They could face a powerful enemy that requires their combined skills. Naruto's jutsus and the Lee brothers' taijutsu would make for an exciting battle sequence.
In many Naruto yaoi time travel fanfictions, it can be triggered by a powerful jutsu. For example, a secret time - space ninjutsu might go wrong and send a character back in time.
In a Naruto time - travel Minato fanfiction, Minato could be sent to the future. There, he would see how the village has changed, and might be shocked to find out about the Akatsuki and their actions. He could then work with Naruto and the others to fight against the Akatsuki using his unique skills and knowledge of the past. For example, he could teach Naruto some new jutsu that was lost over time.
A Naruto and Tsunade time travel fanfiction can be really interesting. It could involve them going back in time to change certain events in the Naruto universe. Maybe they go back to prevent a great tragedy or to save a beloved character. For example, they might travel back to the time of the Uchiha massacre and try to stop it, which would completely change the course of the story.