Another theme could be survival. If the source material has elements of danger or a tough environment, the fanfic might focus on how the reader and Cato survive together. They rely on each other's skills and develop a deep bond while trying to stay alive in a hostile world.
The theme of sacrifice can be present. In the context of the Hunger Games, they might be in a situation where one has to sacrifice for the other. This could be for love, for victory, or for the survival of the other. There's also the theme of redemption in some fanfics. Maybe they have done things in the Games that they regret, and through their relationship, they find a way to redeem themselves.
One common theme is loyalty. Given their relationship in the Hunger Games, many fanfics explore how loyal they are to each other. Another is the theme of unspoken love. Since they are from the same district, there's often a sense of a deeper connection that wasn't fully explored in the original, so fanfics play with that idea.
One common theme is adventure. Since Vanoss is often associated with action - packed gaming content, many fanfics will put the reader and Vanoss in exciting adventures, like exploring a post - apocalyptic world or going on a treasure hunt in a fantasy realm.
One common theme is friendship turning into love. It often starts with the reader and Haruka being friends, and then their relationship gradually develops into something more romantic.
Another theme could be self - discovery. Through the relationship with Ravenna, the reader character might learn more about themselves, their strengths, and their weaknesses. This could be set against the backdrop of a fantasy world that Ravenna inhabits.
One common theme is the development of a romantic relationship. Usually starting from an initial encounter between the reader and Tadashi, and then gradually evolving into deeper feelings.
One common theme is the development of a romantic relationship. It often shows how the reader character and Kirishima get to know each other, overcome obstacles, and fall in love.
One common theme is friendship. The fanfics might explore how the reader character becomes friends with Piccolo, gradually breaking through his tough exterior.
One common theme is adventure. The story might involve the reader and Mercy going on some sort of heroic adventure together, facing challenges and saving the day.
One common theme is the exploration of forbidden love. Since they are from different 'sides' in the Hunger Games context, their relationship goes against the norms. Another theme is self - discovery. Both Peeta and Cato have to come to terms with their sexual orientation and their feelings for each other.