Jacob could also be a popular character. If Bella is not human, his loyalty and friendship towards her might be tested in new ways. He could be either accepting of her new form or struggle with the changes in their relationship.
In addition to Bella, her family members are likely to be part of the story. Her mother could be a source of both wisdom and worry, while her father might be more reserved in his reactions. There could be a neighbor who has had children of her own and offers Bella some much - needed advice. And don't forget about the baby! Even though it's just been born, it can be a character in its own right, with its own needs and presence that affects the story.
Luna is a well - liked human character. She has a special connection with dragons, being able to sense their emotions. And there's Fang, a fierce but kind - hearted dragon. Fang is often depicted as a protector, both of his own kind and of the humans he befriends.
One popular character could be a young human adventurer. This character is brave and curious, always eager to explore new areas in the Pokemon - only - human world. They might start off as a novice but quickly grow in skills and knowledge, becoming well - known among other humans for their ability to handle difficult situations involving Pokemon.
One concept could be that Bella Swan is a vampire from the start instead of becoming one. This flips the whole Twilight narrative on its head and allows for different character dynamics and plot developments. For example, she might be a part of a different vampire coven with unique rules and traditions.
Edward is often still a key character. If Bella is not human, their relationship dynamic would change drastically. For example, if Bella is a vampire, they might have different power levels or views on being a vampire, which could create conflict or a new kind of bond. Another character could be Jacob. If Bella is some sort of magical being, Jacob's werewolf nature might interact with her in unexpected ways, like an alliance or a rivalry.
Often, the strong - willed omega characters who fight against the norms tend to be popular. And the alphas who support the omega's struggle can also be fan favorites.
The popularity comes from the fact that fans love the Twilight couple. Fanfic allows them to explore more of Bella and Edward's relationship. It can add new elements not in the original books.
Edward could be an interesting character to pair with her. If Bella is a non - human, their relationship would take on a whole new dynamic. For example, if she's a mermaid, Edward, as a vampire, would have to deal with the differences in their species. Another good character could be Jacob. If Bella is some kind of supernatural being, Jacob's wolf nature could create a complex relationship with her, full of loyalty and conflict.
Obviously, Bella herself is a central character. Edward also remains important as he is her love interest. Their relationship as two vampires has a different flavor compared to when Bella was human. Also, Alice is often featured prominently as she can see the future and might foresee new challenges or opportunities for Bella as a vampire.
Bella herself is of course a very popular character. She is often the central figure around which the story revolves. Then there are the mobsters, like the powerful and brooding mob boss. His character is usually portrayed as having a tough exterior but a soft spot for Bella.