A really cool plot might be that Naruto and the Nine - Tails enter a spiritual realm together, where they have to complete a series of challenges to strengthen their bond. These challenges could test their trust, courage, and ability to work as a team. Along the way, they meet other spirits that either help or hinder them in their quest.
A great plot in 'naruto of the nine tails fanfiction' could be that Naruto has to face an enemy who has a similar power to the Nine - Tails. He then has to rely not only on his own skills but also on his bond with the Nine - Tails to overcome this new threat. The Nine - Tails might offer him advice or even share some of its hidden memories to help Naruto in the fight. This could lead to Naruto growing stronger both as a ninja and in his understanding of the Nine - Tails.
Well, a common plot in Naruto x Nine Tails fanfiction is the Nine Tails influencing Naruto's personality more. Instead of just being a source of power, it might make Naruto more assertive or even a bit more wild in his actions. For instance, in some fanfictions, Naruto starts to have a more animal - like instinct in battle because of the Nine Tails' influence. Also, there could be a plot where Naruto and the Nine Tails have to work together to face a new, extremely powerful enemy that not even the combined forces of the Hidden Leaf Village could handle alone.
A plot could be where the Nine - Tails is on a journey and comes across a lemon tree that is actually a magical portal. When it touches the lemons on the tree, it gets transported to a different dimension full of other Pokemon with unique lemon - based abilities. The Nine - Tails then has to find a way back home while also learning about this new world and its secrets.
There could be a fanfiction where the Nine - Tails takes on a more human - like form temporarily. In this form, it accompanies Naruto on a journey outside of the Hidden Leaf Village. They face various challenges together, and along the way, the Nine - Tails starts to understand human emotions better, and Naruto learns more about the ancient history of the tailed beasts from the Nine - Tails itself.
Sometimes, other characters from the Naruto universe might also play important roles in these fanfictions. For example, Kakashi could be involved as Naruto's mentor, giving advice on how to better communicate with the Nine - Tails. Or Sakura might be there to support Naruto in his journey of befriending the Nine - Tails, even if she doesn't directly interact with the tailed beast.
Well, initially, Naruto might show kindness towards the Nine - Tails despite it being a powerful and somewhat feared entity. He could try to communicate with it on a deeper level. The Nine - Tails, in turn, might be intrigued by Naruto's tenacity. As time passes, they begin to trust each other more. Naruto may share his dreams and fears with the Nine - Tails, and the Nine - Tails might start to see Naruto as someone worthy of its friendship.
One possible plotline could be Naruto's struggle to control the new power of the nine tails as it grows. He might face challenges from both within, like dealing with the increased aggression and power surges, and from without, such as enemies who are more afraid of his growing strength and target him more aggressively.
One idea could be Naruto having a unique connection with the Nine Tails that allows him to access new forms not in the original series. For example, a form that combines his human features with more fox - like aspects in a more aesthetically pleasing and powerful way.
One interesting fanfiction could be about Naruto and Kurama forming an even deeper bond than in the original series. They might go on adventures together in the spirit realm, facing challenges that test their newfound connection.
One idea could be a fanfiction where Naruto has to temporarily transfer the Nine - Tails' power to a fellow ninja to save the village. This would create an interesting dynamic as the other ninja has to quickly adapt to the power and the responsibility that comes with it.