Another option is Wattpad. While it has a wide range of content, you can still find some interesting 'sonic x lancelot fanfic'. However, be aware that the quality can vary a lot on Wattpad, so you may need to do some more digging compared to the other two sites.
A popular 'sonic x lancelot fanfic' is 'When Worlds Collide'. It's a more detailed fanfic that not only focuses on Sonic and Lancelot but also brings in other characters from their respective universes. It shows how their different cultures and values clash and then blend as they face a great threat. The author does a great job of creating a believable scenario for their meeting and cooperation.
One idea could be a crossover universe where Lancelot, from the Arthurian legend, is somehow transported to Sonic's world. Maybe he teams up with Sonic to fight against a common enemy that is threatening both their realms. For example, an evil wizard from Lancelot's world has joined forces with Dr. Eggman, and they have to use their combined skills to stop them.
Yes, there are some out there. You can start by looking on popular fanfic platforms like Archive of Our Own or FanFiction.net. Just search for 'king sonic x sir lancelot' and you might find some interesting reads.
One possible plot could be Sonic getting transported to the world of King Arthur. There, he meets Sir Lancelot. They might initially be at odds due to their very different natures - Sonic's speed and modern - day heroics versus Lancelot's chivalry. But then they find a common enemy, like a dark sorcerer who is trying to take over both Sonic's world and Camelot. They join forces, with Sonic using his speed to outmaneuver the sorcerer's minions and Lancelot using his swordsmanship and strategic mind. Together, they manage to defeat the sorcerer and in the process, learn a lot from each other about courage and honor.
Sonic, being a hero from a different time and place, would likely start off by challenging Lancelot's more traditional ways. Lancelot would be confused by Sonic's strange appearance and abilities. However, as they face challenges together, like protecting a village from bandits, they would start to understand and respect each other. Sonic would show off his speed - based combat moves, and Lancelot would display his sword - fighting skills. They'd learn from each other's fighting styles and develop a mutual admiration.
First, do your research on both Lancelot and Sonic. Know their personalities, their abilities, and their backstories. For Lancelot, understand his chivalrous nature and his loyalty. For Sonic, his speed and his love for adventure. Then, create a unique plot that combines elements of their worlds in an interesting way. Make sure the dialogue is in - character for both of them.
One common theme could be the clash of different worlds. Sonic comes from a modern, fast - paced world while Lancelot is from a medieval, chivalric setting.
The relationship could be one of mentorship. Lancelot, with his knightly wisdom, could mentor Sonic, who is new to the ways of the knights. Sonic would be eager to learn and Lancelot patient in teaching.
A common theme is the clash of different cultures. Sonic is from a modern, fast - paced world, while Lancelot is from a medieval, chivalric world. So there's often a theme of how they adapt to each other's cultures.
One possible scenario in this fanfiction could be Sonic's super speed being a great asset in a medieval battle alongside Sir Lancelot. Sonic could use his speed to quickly deliver messages or scout the enemy's territory, while Lancelot uses his combat skills. Their partnership would be an interesting dynamic, as Sonic comes from a very different world than Lancelot.