There might be a fanfiction where Kale and Caulifla are transported to an alternate universe. In this universe, they have to adapt to different rules and make new allies. They could also encounter versions of themselves that are quite different, which would lead to some really interesting character interactions.
You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Use the search function and type in 'Dragon Ball Super Kale and Caulifla'. Check the ratings and reviews of the stories to find the good ones.
One idea could be a story where Cabba helps Caulifla and Kale train for a big tournament. They face various challenges together and Cabba's unique fighting style influences the sisters to develop new techniques. In the end, they all become stronger and their friendship deepens.
Well, a Goku x Caulifla x Kale fanfiction could potentially be about their adventures together in a new setting. Maybe it could involve them teaming up against a powerful enemy and during that time, their relationships grow and develop in interesting ways. However, 'lemon' usually implies some inappropriate or adult - themed content, which is not something I would encourage. So if we focus on a non - inappropriate version, it could be a story full of friendship and mutual growth.
Well, one possible plot could be a training arc where Goku helps Caulifla and Kale to master new forms. They could travel to different planets for special training. Goku could share his Saiyan knowledge with them, and together they face off against new powerful enemies.
The plot could involve Cabba inviting Caulifla and Kale to his planet for a special training session. There, they encounter a strange phenomenon that affects their ki. They have to work together to figure out how to overcome it. As they do so, Cabba and Caulifla start to develop feelings for each other while Kale looks on and learns about relationships.
A powerful demon from another dimension could be the main villain. This demon could be seeking to destroy all Saiyans and starts targeting Goku, Caulifla, and Kale. He has unique powers that they have never faced before, like the ability to nullify their energy attacks.
One common theme is friendship. They are all Saiyans (or part - Saiyan in Gohan's case), and the fics often explore how they bond over their shared heritage. Another theme is growth. Gohan can help Kale and Caulifla grow as fighters, and they can also help him in different ways, like making him more confident in his Saiyan side.
A frequent theme is their relationship with other characters in the Dragon Ball Super universe. For example, how they interact with Goku or Vegeta. Some fanfictions also focus on their backstories and how their past experiences shape their present relationship. Also, there are fanfictions that explore the idea of them facing new threats together and relying on each other in battle. This not only shows their strength as individuals but also as a team. In addition, there are stories that deal with their emotional growth, like how they handle jealousy or rivalry among themselves or with other Saiyans.
Their powers could combine in a fusion. Just like how Goku has fused with Vegeta in the past, he could potentially fuse with Caulifla. This would create a new and extremely powerful warrior. Their combined Saiyan powers along with their unique fighting styles would make for an unbeatable force.