In some fanfics, it's a love story. Writers might focus on the moments when they first meet and fall in love. They might describe how Sigurd's heroic deeds attract Brynhildr, and how their connection is so strong that it defies the odds. However, it's also common for it to become a tragedy as the darker elements of the Fate universe start to play their part.
A common theme could be the clash of different mythologies. Since Sigurd and Brynhildr are from Norse mythology (in the context of Fate) and RWBY has its own kind of lore, seeing how these different mythological elements interact is often explored. For example, how their powers might be perceived in the RWBY world of Huntsmen and Grimm.
The 'A Song of Ice and Fire' fanfic with Sigurd could be one where he discovers a long-lost secret that changes the course of the story. It might also be a tale of his rise to power and the challenges he faces along the way.
Theirs is a relationship full of passion and conflict. Their love is intense, which makes it interesting. And the fact that they are often caught up in the grand schemes of fate in the Fate universe adds an extra layer of drama.
I'm not sure of specific 'Sigurd and Brynhildr Fate RWBY Fanfiction' off the top of my head. But you could also try reaching out to RWBY or Fate fan communities on social media platforms. Reddit, for example, has dedicated subreddits for both fandoms. Post a request there asking for good fanfictions involving these two characters in the RWBY world. People in those communities are usually quite helpful in sharing their favorite reads.
A really popular one is 'Captain America Meets the X - Men'. This fanfiction explores what would happen if Captain America were to cross paths with the mutants. It delves into themes of acceptance and cooperation, as Captain America has to figure out how to work with those who are different from him in a very fundamental way.
First, you need to have a good understanding of the anime you want to cross over. Know the characters' personalities, their powers, and the rules of their respective worlds. For example, if you're crossing 'Pokemon' and 'Digimon', you should be aware of how Pokemon battles work and how Digimon evolution occurs. Then, come up with an interesting plot that can bring these different anime together in a believable way. Maybe there's a rift in the multiverse that pulls characters from different anime into one world.
Well, in the 'Don't Notice Me' game story, it might involve a magical world where a small, shy creature has to navigate through a bustling city without being noticed by the bigger, scarier creatures. This could be a story of survival and stealth, as the little creature uses its wits and the environment to stay hidden. For example, it might hide behind big mushrooms or blend in with the shadows of the old, gnarled trees.
One common theme is the battle between good and evil. Van Helsing is always fighting against vampires, werewolves, and other dark creatures, so this is a central aspect in most fanfics. Another theme is redemption. Sometimes Van Helsing or other characters are seeking to make up for past wrongs. For example, in some fanfics, a character who was once on the side of the vampires tries to redeem themselves by helping Van Helsing.