It depends on their popularity and the creativity of fans. If people are really into their characters and potential relationship, fanfiction could definitely exist.
Rick is a very likely character to interact with Negan in hurt Negan fanfiction. Their relationship has been a central part of the original story, and in fanfiction, their interactions could be further explored, especially if Negan is in a 'hurt' state. Another character could be Carl. Carl had his own complex relationship with Negan, and in fanfiction, their dynamic could be developed in new ways.
Well, in 'the maggie hamilton story', Maggie Hamilton could be a normal person who has an extraordinary experience. Maybe she overcame great difficulties, or she made some important contributions in a certain field. But again, without more details, it's hard to say exactly who she is.
In bella and maggie fanfiction, the characters are usually well - developed. Their personalities shine through the stories. The plot often has elements of mystery or discovery. They might discover a hidden power within themselves or find a long - lost object. And the stories tend to be full of emotions, whether it's joy, sadness or excitement as they go through different situations.