You can start by looking on popular fanfic websites like Fanfiction.net or Archive of Our Own. Use the search function and type in 'Soul Eater'. Then, you can sort the results by ratings or reviews. Usually, the ones with high ratings and positive reviews are the better ones.
The arc where Death the Kid battles against the Kishin. It's intense. Kid, with his OCD and unique fighting style, goes all out. His dual pistols, Liz and Patty, are amazing companions. The fight scenes are well - animated and the story around this battle delves into the deeper lore of the Soul Eater world, like the true nature of the Kishin and the role of the Shinigami. It's really exciting and a standout story in the series.
One great Soul Eater fanfic is 'Soul Eater: The New Adventure'. It has an interesting plot that follows the characters in a new set of challenges different from the original story. The author does a wonderful job of keeping the characters' personalities intact while adding new twists.
One possible fanfic could be about Crona's journey of self - discovery. In the world of Soul Eater, Crona has always been an outcast. The fanfic could explore how, as a girl, she tries to break free from the chains of her past and the control of her mother. Maybe she starts to make real friends at the DWMA, like Maka and Soul, and they help her to see her own worth.
One idea could be to have the characters from BNHA attend the Death Weapon Meister Academy in the Soul Eater universe. They could learn about soul resonance and how to handle weapons in a whole new way. For example, Deku could be paired with a unique weapon and struggle to master the new techniques.
One unique feature is the integration of gaming mechanics. For example, characters might have experience points or leveling systems. Another is the use of in - game items or abilities that are translated into the Soul Eater universe. This can lead to very creative power - ups and strategies.
One common theme is the exploration of power. In both Soul Eater and RWBY, power is a central aspect. Fanfics often focus on how characters from different universes compare or combine their powers.
One great Tsugumi x Akane fanfic could be 'Tsugumi and Akane's Unlikely Bond'. It focuses on how their different personalities draw them together in unexpected ways. They start off as just classmates in the Soul Eater Not world, but gradually develop a deep friendship that might turn into something more.
One idea could be exploring the backstories of the lesser - known characters in the Soul Eater world. For example, the story of how some of the minor meisters and weapons got to the Death City. Another idea is a 'what - if' scenario, like what if Maka and Soul never became partners? You could also create a fanfic where the characters have to face a new type of enemy that is not related to kishin eggs but something completely different, like an alien invasion of the Death City.