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.
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.
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.
In some fanfictions, Naruto might be more assertive in his feelings towards Gaara compared to the original anime where their relationship is more about friendship. Gaara may be shown as more vulnerable when it comes to love, as in the anime he is often portrayed as stoic and strong.
In the fanfiction, Evil Naruto might be more cynical and power - hungry. He could have lost his belief in the values of the Hidden Leaf. Gaara, on the other hand, might be more cold - hearted and less likely to show any mercy, as opposed to his more complex and evolving personality in the original series.
Their relationship can also be portrayed as a gradually evolving bond. Gaara starts off with a sense of possessiveness that is more about his own insecurities. As the story progresses, Naruto helps Gaara work through those insecurities, and the possessiveness transforms into a more healthy and mutual bond of friendship and loyalty. This is often shown through various adventures and challenges they face together in the fanfiction.
At first, their relationship might be a bit guarded. Gaara, being used to isolation, might be hesitant to open up to Naruto. But as they face challenges together, like fighting a common enemy, they would start to respect each other's strength. Naruto's positive attitude would gradually break down Gaara's walls, and they would become friends.
Their personalities would blend in interesting ways. Naruto's positive energy could inspire Gaara to be more open and less brooding. Gaara's calm and collected demeanor could help Naruto think before he acts. For example, in a fight scenario, Naruto might want to rush in, but Gaara could offer a more strategic approach, and together they would make a great team.
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.
Female Naruto is often portrayed as energetic and outspoken. Gaara, on the other hand, is quiet and reserved. In fanfictions, their personalities can create a lot of interesting dynamics. For example, female Naruto's enthusiasm can break through Gaara's cold exterior. She might be the one to initiate conversations and drag Gaara into various situations, whether it's a friendly spar or helping out in the village.
Naruto would likely show Gaara that the village can be a place of acceptance. He could introduce Gaara to the villagers, starting with the kids. The kids' innocent acceptance of Gaara would be a big step in changing his view. For example, they could play games together in the village square.