Another interesting one could be 'Fem Kyuubi's Desire for Naruto' on Archive of Our Own. In this fanfic, the fem Kyuubi is portrayed with a lot of depth. It shows her inner thoughts and feelings towards Naruto as she tries to navigate the world around her while being attached to Naruto in a very special way. It's a really engaging read if you like this concept.
Another way could be through communication. In some private moments, she might open up to Naruto about how she feels. She could say things like 'You are important to me, and I want you by my side always' in a soft and sincere tone.
One idea could be that the fem Kyuubi starts to show her affection in small ways. For example, she might protect Naruto more fiercely during battles. She could also start leaving little signs of her presence around him, like a soft growl when danger is near that only he can hear. This would build an interesting dynamic as Naruto tries to figure out what these new behaviors mean.
In the 'fem kyuubi wants control of naruto fanfiction', the fem Kyuubi may try to gain control through mind games. She could manipulate Naruto's memories or create illusions to make him more pliable. By messing with his perception of reality, she hopes to make him more reliant on her and thus gain control. Also, she might use her unique connection with Naruto, as the Kyuubi, to plant suggestions in his mind when he's vulnerable.
The plot might center around the fem Kyuubi's desire to own Naruto due to some sort of pre - determined fate. She might have a vision or a prophecy that Naruto is essential to her future. So she attempts to control his actions and decisions, which Naruto initially resists. This creates a dynamic tension between them as they navigate through different challenges in the Naruto universe.
One challenge could be dealing with the new dynamic between him and the fem Kyuubi. If she is overly possessive, Naruto might feel pressured and it could affect his relationships with other friends. For instance, if he has to constantly consider the fem Kyuubi's feelings, he may not be able to hang out with his friends as freely.
The power dynamics can be another great element. The Kyuubi is an extremely powerful being, and when it's a female with her own motives towards Naruto, it can lead to some really cool power - related plotlines. Maybe she uses her power to protect Naruto in ways that are different from the male Kyuubi concept. And in some fanfictions, this power dynamic is used to create a sort of yin - yang balance between the two characters, which is a great addition to the story.
It could be other powerful ninja clans who see the fem Kyuubi's possessive behavior towards Naruto as a threat to their own power and influence. They might try to separate them.
There could be a fanfiction where Fem Naruto discovers a hidden side of Fem Kyuubi. Maybe Fem Kyuubi has some memories or powers that were locked away and Fem Naruto helps her unlock them. This could set off a chain of events that not only changes the relationship between them but also has a major impact on the entire ninja world as they face new threats and opportunities together.
I really liked 'Fem Kyuubi's Bond with Naruto'. In this fanfic, the fem Kyuubi forms a deep emotional bond with Naruto. The author does a great job of showing how they support each other through various challenges. It has some really cool fight scenes where the fem Kyuubi's unique abilities are shown, which makes for an exciting read.