One common scenario is during a mission. Naruto might be paired with a new character in a team for a mission. Through facing challenges together, they develop mutual respect and friendship. They learn to rely on each other's skills, like Naruto's strength and the other character's unique abilities.
Festivals or village events are also typical settings for Naruto to make friends in fanfiction. He participates wholeheartedly in the activities, and his enthusiasm draws others in. They start chatting, having fun together, and before long, a new friendship is formed.
A common scenario is when Naruto is on the verge of death. The Kyuubi realizes that if Naruto dies, it might also be in a bad situation. So, it decides to cooperate and in the process, they start to understand each other better and become friends. Another is when Naruto enters the Kyuubi's lair in his mindscape and instead of fighting, he tries to have a peaceful conversation, which leads to friendship.
One common scenario is that they get trapped in a different dimension together. In this strange new place, they have to rely on each other to survive. Without the distractions of their normal lives and the expectations of the village, they really get to know each other on a deeper level and become best friends.
One common scenario is that Snape saves Harry's life in a more personal way than in the original story. This act of heroism makes Harry see Snape in a new light and starts the journey towards friendship. Another is when they discover a common interest, like a love for a particular type of magic or potion - making. This shared interest bridges the gap between them.
Perhaps Naruto lies to Kushina about something major. Let's say he gets into trouble at school and instead of being honest, he tries to cover it up. When the truth comes out, Kushina could be so disappointed that she cries. Or if Naruto decides to leave the village without telling her first, knowing how much Kushina loves him and wants him to be safe at home. This sudden departure could break her heart and make her cry.
One common scenario could be Ginny flirting with another boy in front of Harry. For example, she might dance with a popular Quidditch player at a Hogwarts party while Harry watches. Another could be Ginny getting a lot of attention from an older student for her academic achievements, and Harry starts to feel left out and jealous. Maybe Ginny is also asked to be a partner for a special project by someone other than Harry, and she seems really excited about it, which makes Harry green with envy.
Another scenario might be that Mikoto is cursed by a dark jutsu. Naruto, with his knowledge of different jutsus and his ability to adapt quickly, finds a way to break the curse. He might seek help from the toads in Mount Myoboku or consult with the sages in the village to figure out the counter - jutsu.
One common scenario is after a major fight between them. Naruto might feel that the relationship has become too strained and decides to avoid Sasuke to give both of them time to cool down. For instance, if they had a very intense battle over different ideologies and Naruto realizes that they can't immediately reconcile, he would avoid Sasuke.
One common scenario is during battles. Naruto would be right by Sakura's side, deflecting attacks aimed at her. Another is when Sakura is facing emotional distress. Naruto would be there to comfort her and protect her from any further emotional harm.
In the 'friends with benefits' full story, a common scenario is when two single friends who are both not looking for a serious relationship at the moment decide to have some fun together. They might be enjoying their single lives, going on dates but not really finding the right person for a committed relationship. So, they turn to each other for that physical connection. Another situation is when two friends who have been in long - term relationships before and are now out of them, want to ease back into the dating world without the pressure of a full - on relationship. They choose to be friends with benefits as a kind of middle ground. Also, sometimes it starts when one friend has a crush on the other but the other just wants something casual, and they end up in a 'friends with benefits' situation.
The theme of redemption also pops up a lot. For example, Sasuke's journey in the original series has elements of redemption, and fanfictions might explore this further. They could show how Sasuke fully redeems himself through his actions towards his friends and the village.