A plotline could revolve around Hiccup's attempts to train dragons without the use of violence or coercion, which is against the traditional methods. He might start with a small, less intimidating dragon and gradually build trust. His actions could inspire other younger members of the tribe who are more open - minded. However, there could be setbacks, such as the dragon accidentally causing harm in the village due to misunderstandings. This would then test Hiccup's ability to convince the tribe that it was an accident and that with proper training, such incidents can be avoided.
Perhaps a plotline where Hiccup's refusal causes him to be ostracized from the tribe for a while. During this time, he ventures out on his own and encounters a group of dragons that are also outcasts in their own way. Together, they form an unlikely alliance. As they work together, Hiccup learns more about the dragons' intelligence and emotions. This experience strengthens his resolve to change his tribe's perspective on dragons when he eventually returns. He may have to face challenges like convincing the tribe that the dragons are not a threat and that they can all benefit from a peaceful coexistence.
Well, obviously Hiccup would be one of the main characters. His character is central to the whole concept of refusing to kill dragons. Astrid could also be a main character. She might initially be on the side of the traditional view of killing dragons but gradually come to understand and support Hiccup's stance. Stoick, Hiccup's father, would be an important character as well. His position as the chief and his traditional beliefs would create a lot of conflict with Hiccup's new ideas. And of course, the dragons themselves, like Toothless, could be considered main characters in a sense. They are the ones that Hiccup is trying to protect and coexist with.
One possible plotline could be Hiccup's journey to earn the respect of the dragons and prove herself worthy of being their queen. Maybe she has to face challenges like rival dragon riders or ancient dragon prophecies.
One interesting plotline could be that as they turn into dragons, they have to quickly learn how to fly and hunt like real dragons. They might face challenges from other dragons who see them as outsiders in their new dragon forms.
Another plotline might involve the twins' struggle to fit into human society. After being raised by dragons, they would have different values and behaviors compared to normal humans. This could cause conflict when they try to interact with their own kind. They might face prejudice from those who don't understand their dragon - influenced ways, but also find a few who are intrigued and want to learn from them.
The author could try to rewrite the fanfiction to better align with Hiccup's character. Make sure the dragons are depicted in a way that he would approve of.
One interesting story could be about Hiccup exploring new dragon lands that were previously unknown. He might discover rare dragon species and learn their unique behaviors.
One interesting plotline could be the rebirth of a powerful dragon with amnesia, having to rediscover its powers and past. Another might involve the dragon's new relationships with other mythical creatures in the fanfiction world.
One idea could be that Hiccup, after turning into a dragon, has to learn to communicate with his old dragon friends in a new way. Since he now experiences the world as a dragon, he might discover new dragon abilities and secrets that were hidden from him before. Maybe he has to find a way to turn back, but in the process, he helps the dragon world solve a big problem, like dealing with a new and dangerous enemy.
In a fanfiction, Hiccup could be faced with a situation where the other gods are jealous of his status as the God of Dragons. They conspire to strip him of his powers. Hiccup then has to rely on his friends, both human and dragon, to regain his powers. He might go on a quest to find ancient artifacts that were used to first bestow the God of Dragons title upon him. This would involve a lot of adventure, battles, and self - discovery.
One idea could be that Hiccup discovers a new type of dragon with unique abilities. For example, a dragon that can change its color to blend in with its surroundings. This could lead to a whole new adventure as he tries to understand this dragon and protect it from those who might want to use it for bad purposes.