There could also be other characters from the Dragon Ball universe making an appearance. For example, Vegeta might show up. He could be curious about Fem Goku and how she compares to Goku in terms of power. Or Bulma could be there, perhaps she's interested in the technology or biology behind Fem Goku's existence.
Perhaps they would team up against a common enemy. In fanfiction, new threats are often created. They could combine their strength and unique techniques to defeat the bad guy.
One idea could be a story where fem Goku is somehow transported to the Naruto universe. She might use her Saiyan strength and abilities to help Naruto and his friends in a big battle against a powerful enemy like Madara. Maybe she teaches Naruto some new combat techniques inspired by her own training on Planet Vegeta.
One common theme is the exploration of their relationship. Since they have very different personalities, it's interesting to see how they interact and grow closer. Another theme is power - how Fem Goku's power, which might be different from the male Goku's in some interpretations, and Vegeta's power combine or contrast.
Honestly, the best writers are the ones who can take the basic concepts of Goku and Fem Frieza and turn them into something completely different yet still in - character. Some writers do this by exploring different genres within the fanfiction. So instead of just an action - packed story, they might write a romantic comedy or a mystery involving Goku and Fem Frieza. These writers are often the ones who can surprise readers with their creativity and fresh perspectives.
A frequent theme is the adaptation of their Saiyan heritage in a female context. In many fanfictions, fem Goku and fem Vegeta have to deal with the expectations of being female Saiyans in a way that's different from the male counterparts. Also, there's the theme of self - discovery. They might discover new aspects of their personalities that are related to their new gender identity. It's like they are re - defining what it means to be a Saiyan as a female.
Well, friendship is also a theme. Despite their differences, they might form an unlikely friendship. In some fanfictions, they learn from each other. Goku might learn about strategy from Fem Frieza, while Fem Frieza could learn about determination and the will to protect from Goku. And of course, adventure is a big theme. They could go on quests together, exploring new planets and facing new challenges.
There are indeed some. I've come across a couple where the authors beautifully develop their relationship. They often play with the idea of how their different personalities, Goku's adventurous and friendly nature and Fem Broly's more complex, often misunderstood character, could come together in a romantic context. It's interesting to see how different writers approach this unique pairing.
Zamasu is often paired with Goku Black. Since they are closely related in the original story, fanfiction writers like to explore their relationship further. It could be about their shared goals or how they interact on a more personal level.
One interesting fanfiction could be about Goku and Black Goku teaming up against an even greater threat from another universe. In this story, they might initially be at odds but gradually learn to work together, using their unique abilities to save the multiverse.