One common theme is redemption. Since Broly is often portrayed as a villain initially, many fanfics focus on his journey towards redemption with Goku's help. For example, Goku might show Broly a different way of using his power, leading Broly to change his ways.
One common theme could be loneliness. Both Broly and Goku have had their moments of isolation. Goku was alone on Earth as a baby, and Broly has often been an outcast. In a sad fanfic, this loneliness could be emphasized, and they might find some sort of connection through their shared feelings of being alone. Another theme could be powerlessness. Despite their great strength, there could be situations where they feel they can't protect what matters to them, leading to sadness.
One popular 'goku x broly fanfic' is 'The Unlikely Bond'. It explores a scenario where Goku and Broly, instead of being just rivals, start to understand each other on a deeper level. They team up against a common enemy that threatens the entire universe.
One popular 'broly x goku fanfic' is 'The Bond Beyond Rivalry'. It explores their relationship in a new way, with unique character interactions and an engaging plot.
Another theme is the discovery of new powers. When Goku and Broly's sister interact, they might unlock new abilities within themselves. For example, through their combined energy, they could create a new form of attack or defense. This theme of growth and discovery is quite prevalent in such fanfictions.
Well, power - related themes are quite common. They might show Goku and Female Broly training together and growing even stronger as a couple. Another frequent theme is the clash of cultures. Goku has his Saiyan warrior side but also his Earth - influenced values, while Female Broly could have her own unique Saiyan upbringing. Their relationship can be a way to explore how these different backgrounds interact. And of course, the theme of friendship - turning - into - love is also often seen in such fanfictions.
Yes, there are quite a few. You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'Goku x Female Broly' and you'll find a variety of stories with different plotlines, from adventure - filled ones to more character - study - like stories.
A fanfic about Broly and Goku being sad could involve many things. Maybe it's about a great battle they had that led to destruction and regret. For example, they might have fought so fiercely that innocent lives were lost, and now they are both sad about the consequences. Or perhaps it could be about a rift in their relationship. Maybe Broly feels misunderstood by Goku, or Goku is disappointed in Broly for some reason.
Goku could escape by overpowering Broly. He might tap into his Super Saiyan forms, like going into Super Saiyan Blue or even Ultra Instinct if he's pushed far enough. His sheer power and fighting skills could allow him to break free from whatever restraints Broly has put on him.