A frequent theme might be the exploration of power and influence. Barbie has her own kind of power in her world, and Oppenheimer had a huge influence on the world with his scientific achievements. Fanfictions might play with how these two types of power interact. Also, the idea of change is often there. How would Barbie's world change with the introduction of Oppenheimer - like elements and vice versa? There could be stories about how Barbie's positive attitude could affect the rather solemn world related to Oppenheimer, or how Oppenheimer's knowledge could transform Barbie's world in some way.
Yes, there are some out there. You can try searching on fanfiction websites. Some might explore the contrast between the light - heartedness of Barbie and the seriousness of Oppenheimer's story in really creative ways.
Well, it could be about Barbie visiting the world where Oppenheimer made his scientific breakthroughs. Maybe she uses her charm and unique perspective to teach the scientists there about the importance of peace and fun in a world that's so focused on power and destruction.
A 'godzilla x destoroyah fanfic' could potentially explore an alternate universe where Godzilla and Destoroyah interact in unique ways. It might focus on their battles, with detailed descriptions of their attacks and defenses. For example, it could show Godzilla's atomic breath clashing with Destoroyah's energy beams.
Obviously, Barbie and Oppenheimer would be the main characters. Barbie with her stylish looks and positive attitude, and Oppenheimer with his brilliant mind and complex personality.
The 'Godzilla x Kong Novel' probably focuses on the unique relationship between these two giant creatures. It could include their individual strengths and weaknesses, and how they come to face off against each other. There might also be elements of the human characters trying to either control or understand these behemoths. For example, perhaps there are scientists studying their behaviors during their clashes. And it may also explore the impact of their battles on the surrounding environment and the world at large.
One idea could be a story where Godzilla and Indominus Rex are forced to team up against a common, even more powerful enemy. Maybe an alien invasion that threatens to destroy their world. They start off as enemies but gradually learn to work together.
Well, it could include the classic Evangelion characters like Shinji, Asuka, and Rei. They might be the ones dealing with the sudden appearance of Godzilla in their world. And of course, Godzilla himself would be a main 'character' in a sense, bringing his own set of behaviors and powers to the story.