Bran Stark could be associated as well. With his powers of the Three - Eyed Raven, he might be able to communicate with the ice dragon or have some sort of premonition about its actions. This could lead to him playing a crucial role in a story involving the ice dragon.
Daenerys Targaryen might also be a main character in such fanfiction. Since she has her own dragons, the addition of an ice dragon to the story could create an interesting dynamic. Maybe she tries to tame the ice dragon or has to face it in battle.
Jon Snow is often associated with the ice dragon in many fanfictions. Given his connection to the North and his role in the fight against the White Walkers in the original series, it makes sense for him to be linked to such a powerful and ice - related entity like the ice dragon.
Obviously, Yamoshi himself is a central character. He's the originator of the Super Saiyan God legend.
Harry Potter himself could be one of the main characters associated with dragon armor. He's always getting into dangerous situations, and dragon armor could be something he discovers on one of his adventures. Another could be Hermione. With her love for knowledge, she might be the one to research about the armor's history and properties.
The rider of the wind dragon is often a main character. They are the ones who have a special bond with the dragon and are usually involved in all the major events. There might also be antagonists, like rival dragon riders or power - hungry lords who oppose the wind dragon and its rider.
One interesting story could be about the ice dragon's role in the great battles of the ASOIAF world. Maybe it shows how the ice dragon's freezing breath turns the tides against an enemy army. It might also explore the dragon's relationship with the White Walkers or how it affects the balance of power among the different kingdoms.
Often, Naruto himself might be associated as he is the main character of the original series. Writers may give him the devil bloodline to explore how it changes his character and abilities.
Naruto himself could be one. Imagine him getting a hold of a legendary weapon that enhances his already powerful Rasengan. Sasuke is also a likely candidate as his quest for power could be intertwined with a legendary weapon.
Naruto himself is often associated with it. Since he is the main character of the series, many fanfictions explore his potential with the Lightning Armor. He might learn to use it in unique ways, like combining it with his Rasengan.
Spock could also be a main character in relation to the communicator. He might use his logical mind to analyze any glitches or strange signals coming from it. In some fanfictions, he could be the one to discover a new way to boost the communicator's range during a critical situation, like when the ship is in a nebula and normal communication is blocked.
Naruto himself could be one of the main characters associated with it. Since he has such iconic spiky hair, it's easy to imagine him developing some unique hair jutsu. Sakura might also be involved, as her long hair could be used in interesting ways in fanfiction. And Sasuke, his cool and somewhat long hair could also be a factor in hair jutsu - related stories.