I think a good way is to think about what kind of personality traits Baby Hiccup would have and build the story around that. For example, if he's particularly brave or mischievous, and how that affects his dragon-training journey.
Baby Toothless fanfiction can take various forms. It could be set in an alternate universe, show unseen moments from the original story, or imagine what happens after the events of the movie.
Well, think about making Zephyr baby a key element in a new adventure or quest. Maybe it has a hidden power that only reveals itself when needed. Or, you could have the other characters form a special bond with it that changes their perspectives and actions.
Well, when Hiccup is a dragon in fanfiction, it could be because of an ancestral connection or a mysterious experiment. This could open up new storylines and allow for exploration of his identity in a completely different way. Maybe it's a way to show his ultimate empathy and unity with the dragon species.
Well, in many fanfictions, the baby of Hiccup and Astrid brings new challenges and joys. Sometimes, the baby inherits their parents' bravery and spirit. But it varies a lot depending on the author's imagination and the story's direction.
First, think about what kind of personality you want baby Hiccup to have. Then, create unique adventures for him that are in line with the How to Train Your Dragon world. Maybe he has a special bond with a rare dragon or discovers a hidden dragon cave.
One popular theme is the further adventures of Hiccup and Toothless. Writers often explore new lands and challenges that they might face. For example, they might encounter a new type of dragon with unique abilities.
In such fanfiction, Hiccup being half dragon often leads to unique adventures and challenges. His mixed heritage might give him special powers or put him in conflict with both human and dragon societies.
The dragon rider tribe in fanfiction often explores unique traits and powers of the riders and their dragons. It could involve special bonds and adventures.