One common theme could be the relationship development between Pyrrha and Jaune. It might explore how their personalities interact in unique situations.
Jaune, who has his own journey of self - discovery and growth. He brings his unique charm and sense of humor to the relationship. Pyrrha, on the other hand, with her stoic yet loving nature, is a central figure. Their relationship forms the core of the fanfiction.
There are many fanfics out there but finding the exact 'rwby futa pyrrha x male jaune' ones can be a bit tricky. Some fanfic communities on Reddit might also be a place to look. But keep in mind that the content should follow the rules and guidelines of the respective platforms. Also, when you search, make sure to be specific in your search terms to narrow down the results.
One interesting plot could be them building a life together after marriage. They might face challenges like how to combine their different combat styles into a training regime for the next generation. For example, Jaune's more unorthodox approach and Pyrrha's highly skilled and precise style could be passed on in new and unique ways.
If they time travel, their relationship could become stronger. They'd be relying on each other in a new and strange situation. Having to face the unknown of a different time period would make them depend on one another for support, both emotionally and in terms of survival strategies.
Jaune could be a character created specifically for this fanfiction. Maybe he's a hero - in - the - making who is just starting to discover his abilities but is held back by his fear of funus.
Another idea is that they travel to a time before they ever met. This allows them to see how things were without their influence. Maybe they find out that small changes in the past have a huge impact on the future. For example, if Pyrrha hadn't been so well - known before coming to Beacon, how would that change the relationships and events there? And Jaune could see how different his life would have been without Pyrrha's initial guidance and friendship.
Yes, there are likely some out there. You can start by looking on popular fanfic websites like Archive of Our Own (AO3) or Fanfiction.net. Just search for 'naruto x pyrrha' and you might find some interesting stories. However, the quality can vary greatly, so it might take some time to sift through and find one that really suits your taste.
One great Pyrrha x Nora fanfiction is 'The Bond Beyond Battle'. It beautifully explores their friendship evolving into something more. The author does an amazing job of depicting their individual personalities within the relationship.