Pain's rinnegan power would be an amazing addition for Naruto. The rinnegan has so many abilities like the six paths. Naruto could use these powers to better understand the world and help people on a larger scale. He could use the power of the Deva Path to manipulate gravity, which would be useful in both combat and for things like building infrastructure in the village. Also, the rinnegan's connection to the afterlife could give Naruto new insights into the spirits and souls, which could be relevant in his interactions with the Nine - Tails and other spirits in the Naruto universe.
Well, it could be that there's a plot device like an ancient artifact. This artifact might have the power to draw out and combine the Akatsuki powers. The Akatsuki members themselves might be tricked into contributing their powers to this artifact, and then the protagonist or an antagonist gets hold of it and gains all those combined powers. It's a common trope in fanfiction to use such magical or mysterious items to bring about extraordinary power combinations.
It could be the main protagonist if the story is written in a way that the character manages to control and utilize all the Akatsuki powers effectively. With the combined powers, they would have a vast array of abilities at their disposal, making them extremely formidable.
One potential consequence could be a shift in the power balance. Naruto was already a strong force, but with Akatsuki powers, he could become nearly unbeatable. This might make other villages either fear him or try to ally with him more strongly. Enemies of Konoha might think twice before attacking. Also, the Akatsuki's powers often come with a certain darkness, so Naruto might have to struggle with that aspect of his new abilities.
One possible place to find such a fanfiction is Archive of Our Own. They have a large collection of Naruto - related fanfictions, and this specific plot might be there. Just use the search bar and type in 'akatsuki find a baby with special powers' and see what comes up.
Well, if Naruto has Akatsuki powers in the fanfiction, his combat style might become more stealthy. Akatsuki members are often associated with sneaky tactics. He could use some of their jutsu like the Sharingan - if he were to somehow get that power - to predict his opponents' moves better, which is a big change from his more straightforward, brute - force - with - Rasengan - type combat style.
Naruto could use his shadow clone jutsu to play pranks. For instance, he could make clones that look like the Akatsuki members themselves and have them do really silly things like dance around in circles or sing out - of - tune. The real Akatsuki members would be really confused at first, thinking one of their comrades has gone crazy.
One great 'Naruto Akatsuki Fanfiction' is 'The Akatsuki's New Recruit'. It offers a unique perspective as it follows a new character joining the Akatsuki. The story delves into the complex relationships within the group, and the writing style really captures the essence of the Naruto universe.
Since the Akatsuki often deals with sealing techniques, Naruto's skills with the Nine - Tails' seal could be enhanced in a different way. He might learn to better control the Nine - Tails' power without relying on the methods taught in Konoha. Also, his physical abilities could be trained differently. Maybe he'd focus more on speed and stealth, which are qualities often valued by the Akatsuki.
Yes, there are several fanfictions with this concept. In these fanfictions, Naruto's character often undergoes significant changes as he joins the Akatsuki. His motives for joining can vary from seeking a different path to having been influenced by certain events or characters. It's an interesting twist on the original Naruto storyline.
One reason could be that they see a greater benefit in having Naruto as an ally, at least for the time being. Maybe they need his strength to take on a common enemy that is even more dangerous to them.