A major theme is power and responsibility. When Hiccup transforms, he gains new powers. In these fanfictions, he usually has to figure out how to use them for good and not let the power corrupt him. Friendship is also a big part. His friends' reactions and how they support or struggle with his new form is often a key element. And there's the theme of identity. Hiccup has to re - define who he is in the context of being part - dragon.
There's also 'Hiccup's Dragon Metamorphosis'. In this fanfiction, the author focuses on the emotional aspect of Hiccup's transformation. It delves into his relationships with Toothless and the other Vikings, and how his new state affects those bonds. It's really interesting as it gives a deep look into Hiccup's internal struggles.
One possible fanfiction could be about a young girl named Lily who discovers she has the power to transform into a dragon. The hiccup part could come in when she first tries to control her transformation and has some minor setbacks, like hiccups in her magic. She might then go on an adventure to find out more about her new powers and her dragon heritage.
One interesting story could be about Hiccup exploring a new, uncharted island with Toothless and encountering a rare, magical dragon species. They have to figure out how to communicate with it and earn its trust.
Yes, he might. Hiccup is a character from 'How to Train Your Dragon' series. If there is an interesting HTTYD 2 fanfiction out there, it's possible that someone could imagine Hiccup reading or being involved in it in some way in the context of fan - created stories.
One popular 'HTTYD Hiccup is a Dragon Shifter' fanfic could be 'The Dragon Within Hiccup'. It explores how Hiccup's new ability as a dragon shifter changes his relationship with Toothless and the other dragons. Another might be 'Hiccup's Shifting Destiny' which delves into the challenges he faces while hiding his new form from the village at first.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of HTTYD fanfictions. Just search for 'Hiccup dragon master' and you'll get a bunch of results.
One interesting plot could be Hiccup's struggle to control his new dragon form. He might initially be frightened by the sudden transformation and have to learn how to move, fly, and use his dragon abilities. Another plot could involve how his friends and the village react to his transformation. Some might be scared, while others could be in awe. And a third plot could be Hiccup using his dragon form to protect the village from a greater threat that normal human - dragon cooperation couldn't handle.
There is also 'Hiccup and Astrid's Adventure'. This one takes them on a journey to a new land. The way it describes their interactions and how they rely on each other is really engaging. The author has a great writing style that makes you feel like you're right there with Hiccup and Astrid during their adventure.
I really like the fanfic 'A Different Kind of Friendship'. It starts with Hiccup and Snotlout being forced to work together on a project in Berk. As they spend more time together, they start to understand each other better. The writer does a good job of showing their growth as characters.