In the beginning, their friendship is based on their shared experiences as Jinchuriki. But as time goes on, they discover more about each other's personalities. They start to care for each other not just because of their similar situations, but because they truly like each other as friends. They might exchange gifts or visit each other's villages more often, which shows the growth of their friendship.
At first, their friendship might be a bit rocky. Sasuke is often aloof and focused on his own goals. But as time passes, Sakura's unwavering support starts to break through Sasuke's walls. For example, when Sasuke is going through a tough time after a battle, Sakura is there to heal his wounds and offer emotional support. This makes Sasuke start to see her as a true friend, and their friendship gradually becomes more equal and trusting.
Their friendship develops as they face challenges together. When Sasuke leaves the village, Naruto and Sakura are both deeply affected. This event makes them realize how important Sasuke is to them. They then work towards bringing him back. During this process, they grow closer as they share their feelings about Sasuke. And when Sasuke finally returns, they have a new level of understanding and their friendship is stronger than ever, having endured such a big test.
Often, their friendship begins with mutual respect. Naruto respects Gaara's strength and his journey from being a loner to a leader. Gaara, in turn, admires Naruto's determination and his ability to make friends so easily. In fanfictions, this can develop as they start to train together. Sharing training techniques and learning from each other helps them bond.
His relationship with his mentors could also be different. Naruto could share the insights he's gained from Kyuubi with his mentors like Kakashi. For example, he might have a new understanding of chakra control because of Kyuubi. This new knowledge could lead to different training methods and a deeper bond between Naruto and his mentors as they explore these new aspects together.
It could start with a simple act of kindness. For example, Naruto might share his food with Gaara during a ninja gathering. This small gesture makes Gaara see Naruto in a new light.
Naruto's friendship with Kurama gives him more confidence. With Kurama's support, he feels like he can face any challenge. He no longer has to rely solely on his own strength but has the power of Kurama as well, which changes his approach to difficult situations.
In many fanfictions, their friendship changes their social interactions. Harry was always surrounded by his Gryffindor friends, but with Draco as a friend, he starts to interact more with Slytherins. Draco, who was used to being with his Slytherin clique, now has to deal with Harry's Gryffindor friends. This new dynamic forces them both to step out of their comfort zones. It also makes them more adaptable. They learn to handle different situations and people better because of their friendship.
At first, their relationship might be a bit awkward. Naruto is not used to Hinata's shy and gentle nature. But as time passes, he starts to appreciate her more. Hinata, on the other hand, becomes more confident because of Naruto's presence. Eventually, they become more comfortable with each other, sharing their hopes and fears.
Well, it could change the storyline in many ways. For one, Naruto would have an even stronger support system. Gaara, being overprotective, might prevent Naruto from getting into some of the more dangerous situations he usually jumps into. This could potentially slow down Naruto's growth in terms of combat experience as he'd be shielded from some threats. But on the other hand, it could also give Naruto more emotional stability, which could in turn help him better control his chakra and learn new jutsus faster. Gaara's presence as an overprotective brother could also affect how the other characters interact with Naruto. Some might be more cautious around him because they know Gaara is watching over him like a hawk.
Well, often in fanfictions, Naruto and Gaara's friendship begins when Naruto tries to understand Gaara's pain. Naruto has also faced loneliness in his life, so he can empathize. They then start to train together in some stories, which helps them bond as they learn from each other's fighting styles and grow stronger together.