He could absorb the Sharingan ability. Imagine Naruto with the power to copy jutsus just like a Uchiha. Another interesting one would be the Byakugan. He could gain enhanced vision and be able to see the chakra points even more clearly. Or perhaps the ability to control sand like Gaara. That would be really cool.
There are several cool abilities. One is the Wood Release. If Naruto absorbs it, he could grow trees and use them for various purposes like creating barriers or even attacking. The Rinnegan is another one. With it, he could have access to a whole new set of powers like the Six Paths abilities. Also, the Kekkei Genkai of the Kaguya clan, which gives the ability to manipulate bone, could be an interesting addition to Naruto's arsenal in fanfics.
In fanfiction, Percy could absorb the ability to heal others instantly. This would be a great addition to his existing powers as it would make him not just a fighter but also a healer. Additionally, he could absorb the power to communicate with animals. This would give him an edge in many situations, like getting help from wild animals during a battle or getting information from them about the surrounding area.
It affects the plot in many ways. Firstly, Naruto's character development could take a different turn. Instead of relying solely on his own natural abilities like the Rasengan and Sage Mode, he now has a whole new set of skills at his disposal. This could make him more independent or it could also make him a target for those who fear his power -absorbing ability. And in the long run, it might change the overall goal of the story. Maybe instead of just protecting the village, he now has to figure out how to control and use these absorbed abilities for the greater good.
In some fanfics, Naruto absorbs the bloodline through a special jutsu. For example, he might find an ancient scroll that contains a jutsu allowing him to transfer and absorb the genetic traits related to a bloodline.
In this fanfiction, the Sharingan from the Uchiha clan is an obvious choice. It has so many abilities like the ability to copy jutsu and predict movements. Naruto could become even more of a prodigy if he absorbs it. Also, the Aburame clan's ability to control bugs could be quite interesting. Naruto could use bugs for reconnaissance or even in combat in ways that are different from his normal fighting style. And the Inuzuka clan's connection with animals, if Naruto could absorb that bloodline, he might be able to form a stronger bond with his summons or other animals in the wild.
One interesting Naruto absorb fanfiction could be where Naruto gains the ability to absorb chakra in unique ways, like from nature itself. This could lead to him having new and powerful jutsus.
One interesting concept could be the way a character's body absorbs new powers or abilities. For example, they might absorb the chakra of a powerful enemy and gain unique skills as a result. It can also lead to interesting changes in the character's appearance or personality.
One possibility is the power to create infinite clones that also have infinite speed. This would be an overwhelming force against any enemy. He could also have the ability to manipulate time in a limited way while using his infinite speed. For example, he could slow down time for his opponents while he moves at normal speed within his infinite - speed state, giving him a huge advantage in battles.
I recommend "The System: I Am the King of Gluttony" to you. The protagonist Ah Shi accidentally obtained the Glutton System in the Radiant Continent, which could absorb the enemy's ability for his own use. They gradually became stronger in the continuous battle. If you like this kind of theme, this novel is definitely not to be missed. I hope you like this fairy's recommendation. Muah ~😗
He could have the Sharingan's ability to copy and predict moves. Also, the Byakugan's near - 360 - degree vision would be really cool. And if he had the Rinnegan, he could use all kinds of powerful jutsu like the Deva Path's gravity manipulation.
The recommended novel,"Super Gene Mall", was a novel about the city and supernatural powers. The story told the story of the protagonist, who had fused the genes of ants and fleas, and gained super strength and jumping ability. He began to adventure and grow in the city. I hope you like this fairy's recommendation. Muah ~😗