One idea could be to create a Faunus character with a unique animal trait, like a bat Faunus with echolocation abilities. You could insert yourself into the story as this character and interact with the main RWBY cast. Maybe your character is a new student at Beacon Academy and has to face the challenges of discrimination from some of the other students due to being Faunus, while also trying to prove their worth in combat and academics.
First, think about your character's backstory. If it's a Faunus self - insert, what led you to the world of RWBY? Maybe you were a refugee from a Faunus - persecuted area. Then, consider the goals of your character. Do you want to become a great Huntsman/Huntress? Or are you more focused on Faunus rights? Build the plot around these elements. For example, if your goal is Faunus rights, you could start with small protests at Beacon Academy and gradually build up to a major event where Faunus and humans have to come together to fight a common enemy.
Maybe a fanfic where Weiss discovers a hidden Faunus community while exploring. She gets separated from her team and has to rely on the Faunus there to survive. This experience makes her re - evaluate her thoughts on Faunus. The Faunus in the community could have unique cultures and abilities that Weiss has never seen before, and she becomes fascinated by them.
Your self - insert could be a transfer student from another kingdom with a completely different fighting style. This would lead to interesting interactions with the main characters as they learn from each other. They might introduce new weapons or combat techniques that the others haven't seen before.
One idea could be that the self - insert character has a special ability to communicate with Grimm on an empathetic level. This could lead to some really unique storylines where they try to understand the Grimm's motives rather than just fighting them. For example, they might discover that some Grimm are being controlled by a greater, more sinister force, and they have to figure out how to break that control.
One idea could be Ruby meeting a wolf Faunus who is initially mistrusted by the group but later proves to be an ally. Maybe the wolf Faunus has a special ability related to tracking that helps Ruby and her team in a mission. Another plot could involve a wolf Faunus who is being hunted by some anti - Faunus group and Ruby decides to protect them, which leads to a series of battles and the exploration of the discrimination against Faunus in the RWBY universe.
Well, for a self insert OC RWBY fanfic, you need to focus on making your OC believable. Don't make them overpowered right away. Let them grow. You can also include interactions with the existing RWBY characters. Maybe your OC becomes friends with Ruby or has a rivalry with Cardin. Plan out the story arc carefully. It could be a short adventure or a long - term story spanning across different events in the RWBY timeline.
One idea could be to insert yourself as a commoner in King's Landing. You could be a street - smart character who witnesses all the political intrigue up close. Maybe you work in a tavern and overhear the schemes of the nobles. Another idea is to be a foreigner from Essos who comes to Westeros with unique skills, like being an expert in a form of magic unknown in Westeros. You could then get involved in the power struggles while trying to keep your own identity and goals secret.
Another type of 'faunus rwby fanfic' could be about a Faunus who has a special ability related to their Faunus trait. Maybe a Faunus with cat ears has the ability to move with extreme stealth and agility. The story could revolve around how they use this ability to help in battles against Salem's forces or to uncover secrets within the world of RWBY.
The relationship between the self - insert character and the existing RWBY characters is a big factor. Whether it's a friendship, a rivalry, or something more complex, it needs to be well - developed. For instance, if the self - insert character becomes friends with Ruby, their interactions should show how they support and learn from each other. Also, the fanfic should respect the lore and world - building of RWBY. This includes things like the different kingdoms, the role of Huntsmen and Huntresses, and the significance of the Grimm.
Well, one idea could be that Ruby's dragon faunus side is awakened by a powerful relic. And then she has to quickly learn to control her new powers. Another is that she discovers she has a special bond with a dragon - like Grimm, which is really strange as Grimm are usually just evil entities. This bond could make her question the nature of Grimm and faunus.