One common theme is redemption. Since Kakashi has a lot of regrets in his life, in time - travel fanfics, he often tries to make up for his past mistakes. For example, he might try to save his comrades who died in the original timeline.
I really like 'Back to the Beginning: Kakashi's Time Travel'. In this fanfic, Kakashi travels back to his early days in the Anbu. It's interesting to see how he interacts with his younger self and how he tries to prevent some of the mistakes he made in the past. The author does a good job of keeping the Naruto universe's lore intact while adding their own unique twists.
Well, if Sakura and Kakashi time - travel, their relationship could become more equal. In the original story, Kakashi is Sakura's teacher, but in the time - travel scenario, Sakura, as an Anbu, has more skills and experience. They might start to see each other as true comrades, sharing equal responsibility in whatever situation they face during the time - travel.
One idea could be that Sakura, as an Anbu, travels back in time and tries to prevent certain tragedies in Kakashi's past. Maybe she stops Obito from 'dying' initially, which would change the entire Naruto storyline in a major way.
I think Yamato could be a good choice too. His ability to control wood style could be really useful in the past. Maybe he could time - travel to help with the growth of the first trees in the ninja world or something like that. And his calm and collected nature would help him adapt to the new situation in the past.
Well, Kakashi could train Naruto in combat skills specific to ANBU missions. This would include more lethal and precise attacks. He might also teach Naruto how to use different types of weapons that are common in ANBU operations. Maybe Kakashi would set up mock battles where Naruto has to face multiple opponents at once, just like in real ANBU scenarios.
In a Sakura and Kakashi time travel fanfiction, they could end up in the past during a major war. Kakashi would be a great asset with his Sharingan and combat skills. Sakura, on the other hand, could help the wounded soldiers. Their presence in the past could change the outcome of the war. For example, they might be able to save some important characters who were supposed to die. This would then lead to a completely different future when they return to their own time.
Their relationship in Anbu fanfiction can be really interesting. It could be a relationship of mutual respect. Kakashi respects Sakura's determination and Sakura respects Kakashi's skills and experience. They might work together on various Anbu missions, with Kakashi leading and Sakura following his lead at first. But as time goes on, Sakura could start to contribute more equally.
In Anbu fanfiction, Kakashi is often depicted as a highly skilled and mysterious figure. His past experiences in Anbu shape his character, making him more reserved and calculative. Sakura, on the other hand, might be shown as growing in strength and independence while in the Anbu setting. She could be learning from Kakashi's expertise and trying to prove herself in this more dangerous and secretive organization.
Naruto is often a common character. Since Naruto has a strong bond with Kakashi, he might be involved in Kakashi's time - traveling adventures. Sasuke could also be there. Their relationship with Kakashi in the original story makes it likely for them to show up. And of course, Guy would be a great addition. His friendly rivalry with Kakashi would add some humor and action to the time - travel scenarios.