They're similar in their tenacity. Naruto never gives up, no matter how tough the situation is. He keeps fighting against powerful enemies like Pain or Sasuke. Gaara is the same. He has faced numerous challenges, especially when dealing with the internal and external threats to his village. Despite his past traumas, he stands firm. Also, they both understand the pain of being an outcast, which makes them empathetic towards others who are suffering.
A fanfic named 'Gaara's Redemption in Naruto's World' is also quite good. It shows Gaara finding his place in the same world as Naruto. It has a lot of action scenes where Gaara uses his unique sand powers, and there are heart - warming moments between him and Naruto as they face challenges together.
It could be the influence of a powerful enemy or a dark power. Suppose there is an enemy who has the ability to manipulate emotions or a dark power that corrupts Naruto's mind. This could lead him to change his personality and become more like Gaara. For example, if the enemy makes Naruto feel alone and unloved, he may start to develop the same cold and distant behavior that Gaara once had.
Well, Naruto could be depicted as being similar to Gaara in their inner strength. Gaara was always strong on the outside but had a fragile heart. Naruto, in this fanfiction, may share that same duality. Maybe he shows Gaara that having a strong will doesn't mean suppressing emotions. He could be the one to show Gaara that it's okay to let others in, since Naruto is always about making friends and bringing out the best in people.
In a Dark Naruto acts like Gaara fanfic, perhaps the story could revolve around a new threat to the village. Dark Naruto, emulating Gaara, decides to take matters into his own hands in a rather ruthless way. He uses his new - found Gaara - like attitude to face the enemy. This could mean using more aggressive and unorthodox combat techniques. Along the way, he might learn some valuable lessons about himself and the importance of his true nature, as opposed to the Gaara - like persona he has adopted.
Another popular 'gaara like naruto fanfic' is 'The Gaara - Naruto Alliance'. This one is all about their alliance and how they use their combined strength to protect their villages. It has some really cool fight scenes and great character development for both of them.
Naruto would probably still be his enthusiastic and determined self, but with a new sense of responsibility as a Wizard Saint. He might be a bit more cautious in using his powers since they are now magical and could have greater consequences. Gaara, on the other hand, might become more open. The new role of Wizard Saint could give him more confidence and he could start to interact more with others in a positive way, rather than just being aloof.
The ninja from other villages would also have different reactions. Those who knew Gaara and his past might be more understanding of Naruto's new behavior, thinking it's just a phase or a way for Naruto to grow. However, those who were enemies of Gaara in the past might see Naruto's change as an opportunity to attack, believing that he has become more vulnerable or unpredictable. The Akatsuki members, if they are still around in the fanfic, might try to take advantage of Naruto's new state, seeing it as a chance to capture him or use his power for their own evil purposes.
The relationship between them could be one of transformation. Naruto, with his positive influence, could help Gaara to change for the better. And in return, Gaara's own growth might inspire Naruto to further develop his own character. They may become close allies, always having each other's backs. Their relationship might also be a bit competitive in a friendly way, pushing each other to be better shinobi while still maintaining a strong emotional connection.
Well, Gaara might see Naruto fanfic as an interesting extension of the Naruto world. He could appreciate how fans explore different aspects of the characters. Maybe he'd be surprised at some of the unique relationships and storylines that fanfic writers come up with.