A young mage with a special affinity for dragon magic could be a main character in the 'dragon knot fanfic'. They sense the power of the dragon knot and are drawn to it, hoping to use it to enhance their own magic abilities and perhaps unlock new spells related to dragons.
A brave knight could be a main character. They might be on a quest to find the dragon knot to save their kingdom from a dragon threat, believing that the knot holds the key to controlling the dragons.
Well, clearly the main characters are Tom and Harry Knot. Tom could be a young, curious lad with a thirst for knowledge. Harry Knot, on the other hand, might be an older, wiser figure, perhaps a mentor - like character to Tom.
Well, the woman could be a jogger who often passes by a dog that is always tied up with a strange knot. The dog is the other main character. It could be a large, friendly breed like a Golden Retriever. And there could be a local dog trainer in the story too. The trainer could help the woman understand the dog better when she decides to interact more with it because of her curiosity about the knot.
A wise old hermit could be a main character. The hermit, living in seclusion, has knowledge about the dragons that no one else does. When the last dragon comes to him for help, he uses his wisdom and his connection to nature to guide the dragon on a journey to restore its species, all while facing various challenges along the way.
The obvious main characters would be the donkey and the dragon.
Princess Bubblegum also frequently appears. Her scientific knowledge and leadership in the Candy Kingdom can be useful in dealing with the mysteries that knots might bring. For example, if a knot is causing some sort of chaos in the kingdom, she would be there to analyze and try to solve it.
Maybe a new Saiyan who was born on a different planet and has a different understanding of Saiyan culture. He or she could come to Earth and interact with the existing Dragon Ball characters, bringing new fighting styles and a fresh perspective to the story.
The main characters could be a young adventurer who stumbles upon the blue dragon and the delphinium. Or perhaps a wizard who has been studying the delphinium's magical properties and then has an encounter with the blue dragon.
I'm sorry, I don't know who the main characters are in 'the love knot novel' as I haven't read it. But usually in a love novel, there are a male and a female lead.
It could be Harry Potter himself as he often has to face powerful and symbolic foes. He might be the one to interact with the dragon, the lion and the serpent in some way.
The main characters in the 'Devils Knot True Story' are the three teenagers who were wrongly convicted, Damien Echols, Jessie Misskelley Jr., and Jason Baldwin.