One great Samurai Jack fanfiction is 'The Lost Years' on FanFiction.net. It delves into what Jack might have been doing during his time lost in the future. Another is 'Jack's New Allies' which introduces some interesting new characters to his journey. And 'Samurai Jack: Redemption' is also quite good as it focuses on Jack's internal struggle and his quest for a way back to his own time.
Well, I really liked the fanfiction 'Jack's Encounter with the Mysterious Tribe'. It has a unique plot where Jack stumbles upon a tribe with its own set of rules and powers. Then there's 'Samurai Jack: The Unseen Battles' which shows some battles that were not in the original series. Also, 'Jack and the Forgotten Art' is worth checking out as it explores an ancient art that Jack discovers.
DeviantArt can be a source for Samurai Jack fanfiction as well. Some artists not only post their art but also write stories related to Samurai Jack. You can search for relevant keywords like 'Samurai Jack fanfic' and explore the results. There are often some hidden gems among the works on DeviantArt.
One great Samurai Jack female Jack fanfiction could be 'The Adventures of Female Jack'. It might show her facing different challenges in the same post - apocalyptic world as the original Jack. Another could be 'Female Jack: A New Path' which could explore her forging her own unique destiny, different from the male Jack's journey.
You can try fanfiction websites like FanFiction.net or Archive of Our Own. They usually have a wide variety of fan - created works including Samurai Jack fanfiction.
A crossover could also involve Naruto teaching Samurai Jack some ninja techniques. Samurai Jack is already a highly skilled warrior, but learning things like stealth and shadow clone jutsu could give him an edge in his fight against Aku. In return, Samurai Jack could teach Naruto about his code of honor and the way of the samurai, which might influence Naruto's approach to battles and his relationships with others.
One idea could be creating an OC who is a long - lost relative of Samurai Jack. Maybe a cousin who has also been trained in the ways of the samurai and comes to help Jack in his fight against Aku. This OC could have unique abilities, like the power to control the elements, which would add new and exciting elements to the story.
One interesting crossover could be the unique fighting styles. Samurai Jack's precise and traditional swordsmanship could be combined with RWBY characters' more acrobatic and Dust - enhanced combat. For example, Ruby's scythe - wielding speed might be paired with Jack's strategic strikes.
One great Samurai Jack fanfiction story is 'The Lost Years of Jack'. It delves into what Jack might have been through during his time away from his home. It's really interesting as it shows his struggles and how he managed to keep his spirit alive in the face of so many challenges.
One great Westeros watches fanfiction could be those that explore the backstories of the various watch members. For example, a story about how a particular ranger joined the watch and his early adventures on the Wall.
First, do a lot of research on both universes. Know the rules of magic in Harry Potter and the lore of Samurai Jack. This will help you create a believable crossover. For example, understand how spells work in Harry Potter and what Jack's sword can and can't do.
One interesting plot idea could be Ashi exploring the modern world with Samurai Jack. She's so used to the world she grew up in, and seeing her reactions to things like cars, skyscrapers, and modern technology would be really fun. Another idea is a story where they have to team up to fight a new enemy that is a combination of their two worlds' evils. Maybe an ancient demon that has learned to use modern weapons. A third plot could be a time - travel adventure where they go back to Ashi's past to change something that would make her life better and also help Jack in his quest to defeat Aku.