Obviously, Bella is the main character as she is the panther shifter. There could also be her friends or family members who play important roles. For example, her best friend might be the one she confides in about her newfound abilities.
There's 'Bella: The Panther Shifter'. It might focus on Bella's transformation into a panther shifter and how it affects her relationships. Maybe she has a love interest who is initially scared but then accepts her for who she is.
A theme that often appears is the re - evaluation of relationships. As Bella changes, her relationships with other characters, like her friends and love interests, also change. They may react differently to her new form and powers. For example, some may be afraid while others are intrigued. There's also the theme of belonging. Bella has to find her place in the world of shifters, which can be a whole new and complex society.
One common theme is identity. Bella often has to figure out who she is in relation to the shifter world. For example, if she's a human in a shifter - dominated world or if she becomes a shifter herself, she has to reevaluate her self - identity.
One common theme is self - discovery. Bella often has to figure out what it means to be a bear shifter, like learning to control her new form and the instincts that come with it.
One common theme could be the discovery of her new identity. Bella realizing she is a dog shifter and coming to terms with it. Another might be the relationship between Bella and other characters in this new context. For example, how her friends or family react to her transformation.
Yes, there are quite a few. You can start by looking on popular fanfiction websites like Archive of Our Own. Some authors do an amazing job of exploring Bella's character as a wolf shifter, often delving into new relationships, powers, and the impact on the Twilight - like universe she's in.
One common theme is identity. Bella has to come to terms with being a wolf shifter, which is very different from her human self. Another is relationships. How does her new form affect her relationship with Edward, who was in love with her as a human? And also, her relationship with Jacob and the other wolf shifters. Power is also a theme. What new powers does she have as a wolf shifter? How does she use them?
Family is a big theme too. The Cullen family is an important part of the story. Bella's new status as a shifter affects how she fits into the family, and Rosalie's role in the family also comes into play. Their relationship is shaped by the family dynamics, and they have to navigate through family expectations and loyalties while building their own connection.
Another theme is acceptance. She has to deal with how others around her will accept her new identity. Sometimes, she may face rejection from those who are scared or don't understand her new form. But then there are also those who embrace her for who she is.