One of the best SNK fanfics could be those that focus on the backstories of the characters. For example, a fanfic that delves deep into Levi's past before he joined the Survey Corps. It might explore his life in the underground and how he developed his combat skills. Another great one could be about Eren's internal struggle in a more detailed and alternative way than in the original story. There are also fanfics that explore different relationships between the characters, like a friendship - centric story between Armin and Mikasa that shows their bond growing in unique circumstances.
One characteristic could be its unique art style. SNK is known for its distinct visual aesthetics, which are likely to be carried over into the visual novel. Another might be its storytelling. It could potentially have complex and engaging plots, perhaps with elements of mystery or action.
One common theme is power struggle. When characters from different universes meet in a crossover, they often have different levels of power. For example, in a crossover with a superhero universe, the SNK characters might have to deal with the much greater powers of the superheroes, leading to a power struggle.
One common theme could be the exploration of unexpected relationships. Since mpreg is involved, it often delves into how the characters deal with the non - traditional situation of male pregnancy. For example, how the relationship between Harry and Draco might change due to this new development with Zeke in the mix.
Pulp Fiction is a complex and iconic movie with a lot of memorable characters. However, Zeke and Zeb are not characters that are typically associated with it. It's possible that there is some sort of misinformation or a very niche interpretation where these names are related, but in the general understanding of the movie, they don't exist within its world.