One popular fnaf female springtrap fanfic is 'The Enigmatic Female Springtrap'. It has an interesting plot where the female Springtrap has unique interactions with the other animatronics. Another is 'Female Springtrap's Redemption' which focuses on her journey to overcome her past and find a new purpose in the haunted pizzeria. There's also 'A Female Springtrap's Tale' that delves into her backstory and how she came to be in the state she is.
The main character is, of course, the female Springtrap. She often has a complex personality, sometimes being menacing and other times showing a more vulnerable side. Other common characters include Freddy Fazbear, Bonnie, Chica, and Foxy. They interact with the female Springtrap in different ways, sometimes as enemies and other times as reluctant allies.
Well, in the context of fanfiction, it could simply be a creative and unique take on the characters. It might not have a deep meaning in terms of the official FNAF lore. It could be just for the sake of exploring a different kind of interaction, like a 'what if' scenario. For example, it could show that even these spooky characters can have moments of unexpected connection.
Many fans would initially be taken aback by the idea. But then, some would start to analyze it. They might see it as a way to expand the emotional range of the FNAF universe. On the other hand, there are fans who just want the classic horror and won't tolerate any deviation from it. So, for them, this kind of fanfiction would be unacceptable. There are also those who would be neutral and just see it as another oddball piece of fan - created content in the vast FNAF fandom.
One popular 'human Springtrap and Mangle fanfiction' is 'The New Bond'. It focuses on the unique relationship between the human versions of them in a rather mysterious setting. It has an interesting plot that keeps you hooked from the start.
Often, an original female character created by the author is paired with Springtrap. This gives the writer a lot of freedom to shape the relationship. Another possibility is a brave and curious male character who is intrigued by Springtrap and falls in love with him.
Definitely Freddy and Bonnie are among the most popular. But also Golden Freddy, when turned human, has an air of mystery around him. People are drawn to his story because in the original FNAF, he had a lot of lore. When human, his backstory can be further explored, like what made him so special as an animatronic and how that affects him as a human. And the same goes for the Puppet. It has a deep and complex backstory in the FNAF world, and as a human, there are many directions a story can take with it.
Freddy is often a popular character. His human animatronic form might be depicted as having a mysterious past, like he was once a normal human who was transformed into an animatronic against his will.
One interesting concept could be the backstories of the human animatronics. For example, how they came to be in the form of animatronics. Maybe they were part of some experiment gone wrong in a spooky pizzeria.