Well, perhaps a plot twist could be that Tigerclaw actually falls in love with Fireheart as a girl. This changes his whole motivation and instead of trying to get rid of her, he tries to win her over. But Fireheart is conflicted because she knows his bad side. It could lead to a really interesting internal struggle for her, whether to trust him or not and how to deal with her own feelings towards him.
There are also some writers on Archive of Our Own (AO3) who are known for their in - depth and creative takes on this pairing. They might explore different aspects of the relationship, like the power dynamics between Tigerclaw and Fireheart. Reading a few stories from different authors and seeing which ones resonate with you is the best way to find the 'best' for you.
One interesting plot could be their unlikely alliance. Maybe in a story, they are forced to work together to face a common enemy that threatens the whole clan. This could lead to a lot of tension as they have to put aside their differences.
Well, if Fireheart was a girl in Tigerclaw's fanfiction, the power dynamics could be really different. For one thing, Tigerclaw might view her in a different light, perhaps more as a threat or more as someone he could manipulate in a different way than he did with male Fireheart. Maybe she'd face different kinds of challenges in the Clan, like having to prove herself not just as a warrior but also as a female in a male - dominated environment. And her relationships with other characters would also shift. For example, her friendships with female cats might become more complex as they could be both friends and rivals, and her interactions with male cats would have an added layer of gender dynamics.
If Fireheart was a girl in this fanfiction, the plot would change in terms of the power plays. Since female cats often have a different status in the Clan, Fireheart would have to navigate this. Tigerclaw could try to use this to his advantage, but Fireheart could also use it against him. She might form alliances with other female cats who have been overlooked, and together they could disrupt Tigerclaw's plans. This would add a whole new dimension to the fanfiction's plot.
In the original, their relationship was mainly one of enmity. But in this fanfiction, as Fireheart is a girl, there could be more of a complex emotional dynamic. Maybe Tigerclaw would initially underestimate her because she's a female, but then be surprised by her strength and intelligence.
Obviously, Fireheart as a girl would be the main character. She would be the center of the story, with her actions and decisions driving the plot forward.
Typically, these fanfictions focus on their relationship. They might show how they first met and how their initial impressions of each other evolved over time.
One interesting plot could be Fireheart, as a girl, facing unique challenges in the clan. For example, she might have to deal with different expectations from male and female cats. Maybe she has to prove herself even more in hunting and fighting to be taken seriously.
A common theme is the transformation of their relationship. Starting from rivalry or dislike and evolving into something positive, like friendship or love.