Perhaps the fanfiction could focus on aang's parents protecting their tribe. They could be facing a threat from another group. Aang's father would lead the defense while his mother used her skills to keep the tribe's spirits up and also tend to the wounded. This would show their strength and unity as a couple.
Another idea is that the fanfiction could explore their hopes and dreams for Aang before he was born. They might have foreseen great things for him, and they were preparing him even before his birth to be a great leader. They could have been teaching him values through their own actions within the womb, in a spiritual or metaphorical sense.
One possible plot could be about how they met. Maybe they met during a time of peace in their tribe. His father could be a brave warrior and his mother a healer. They might have fallen in love while his father was recovering from an injury with the help of his mother.
Obviously, aang's parents would be the main characters. But there could also be other important characters like their friends in the tribe. Maybe there's an old wise man who gives them advice on raising Aang. Or a rival from another tribe who later becomes an ally.
It could be that Aang disappears because of a prophecy. He might believe that by disappearing, he can prevent a catastrophic event from happening. His friends, not knowing this, embark on a journey to find him, facing many challenges along the way. They might discover secrets about Aang's past that they never knew before, and these secrets could be the key to bringing him back.
Well, it could be about Aang dealing with the emotional and spiritual aspects of burying the dead. Maybe he's in a situation where he has to bury fallen comrades and he reflects on the cycle of life and death in the Avatar universe.
Well, it could be about Aang making new friends at school. Maybe he uses his airbending skills in some unique ways during gym class or recess, like creating a gentle breeze to cool down his classmates on a hot day.
Well, one possible plot could be that after the war, they start to see different sides of each other. Aang might see Azula's vulnerability beneath her tough exterior, and Azula could come to respect Aang's power and his kind heart. They might get married as a way to unite the Fire Nation and the rest of the world in a new era of peace and understanding.
Well, one possible plot could be that Naruto uses his shadow clone jutsu to create multiple clones to help Aang with his airbending training. Naruto's clones can act as moving targets or opponents for Aang to practice his dodging and offensive airbending skills on.
One possible plot could be about Sakura's parents' courtship. Maybe they met in a beautiful cherry blossom garden, where her father was immediately smitten by her mother's beauty and kind heart. They then overcame some family - imposed obstacles to be together.
Well, one possibility could be that Naruto, with his years of experience, teaches Aang some advanced combat techniques. Maybe Naruto shows Aang how to better use the airbending in a more strategic way during battles. For example, Naruto might teach Aang how to combine airbending with quick movements like his own shadow clone jutsu - using clones to create distractions while Aang attacks from unexpected angles with his airbending.
The fanfiction might focus on how opening his chakras changes Aang's relationship with his friends and his role as the Avatar. For example, it could make his connection with the spiritual world stronger, leading to new abilities that he has to learn to control. It could also explore how his friends react to this new, more powerful Aang.
Well, it could be about Aang and Sarutobi teaming up to face a common enemy. Maybe an ancient evil that threatens both their worlds.