A possible main character could be a sorcerer. They are seeking a powerful dragon to ride in order to gain more magical knowledge or to defeat an ancient evil. The horror part comes in when they realize that the dragon has a mind of its own and the power they are trying to harness might be too much for them. As they ride the dragon across different magical landscapes, they encounter all sorts of nightmarish scenarios, but their determination and magical abilities keep them going on this dangerous adventure.
In the 'riding the dragon horror fantasy novel', one important element is the relationship between the rider and the dragon. It could be a tenuous bond filled with distrust, which adds to the horror. The dragon's abilities, like breathing fire or flying into the dark clouds, can be used to create terrifying scenes. The setting of the story, whether it's a desolate dragon - lair or a haunted forest that they fly over, is also crucial. And the character's journey of taming the dragon while facing all sorts of horror - inducing challenges makes the story interesting.
A young princess could be the main character. She is often seen as a symbol of purity and royalty. The kingdom might be in a dire situation due to the dragon's attacks, so they offer her as a sacrifice. She then has to use her wits and any hidden powers she may have to deal with the dragon, perhaps even trying to change the dragon's nature.
It could also be an unnamed space explorer. This character might be new to the Metroid universe and is unprepared for the terrors that lie ahead. Their naivete and lack of knowledge about the Metroids and the dangerous environment would heighten the horror as they struggle to survive.
I recommend Douluo's White-Armored Divine Dragon. The main character in it is Taba Chen, who has the identity of a White-Armored Divine Dragon. He was the grandson of the First Elder of the Sacred Dragon Sect, but he could only take human form and not dragon form. I hope you like this fairy's recommendation. Muah ~😗
Both the wolf and Little Red Riding Hood could be main characters. While the story is from the wolf's point of view, Little Red Riding Hood is an essential part of the story as well. Their interactions and how they perceive each other would be central to the plot.
Perhaps a young wizard who teams up with the dragon. The wizard could use magic to assist the dragon in their adventures.
The girl herself is of course a main character. She's usually brave and curious. The dragon is also a key character, often with unique abilities like breathing fire or having the power of invisibility. There might also be a mentor figure, perhaps an older dragon rider who teaches the girl how to ride and care for her dragon.
Goku could be the main character. Imagine Goku being hypnotized and having to fight against the control while still trying to protect his friends and the Earth. It would be a great twist on his usual heroic self.
It could be a novice Ugioh player who is just starting to understand the game. The call of the dragon could draw them into a more complex and dangerous part of the Ugioh world.
It could be a young adventurer who stumbles upon the dragon tattoo. This person is brave and curious, always ready to explore the secrets behind the tattoo.