One great 'kid Snape fanfiction' is 'The Young Snape's Adventures'. It delves into Snape's childhood at Hogwarts, showing his early encounters with the Marauders in a really interesting way. The author does a great job of capturing Snape's insecurities and his budding interest in potions even as a young student.
Well, it's interesting because we get to see the roots of his complex character. As a kid, Severus was already dealing with a lot of things like bullying and a difficult family situation. Fanfiction in this area allows us to explore how these early experiences might have influenced the person he became later.
First, research Snape's backstory thoroughly. Know about his family, his relationship with Lily, and his early years at Hogwarts. Then, come up with an interesting plot. For example, you could write about a mystery that young Snape has to solve. Make sure to keep his character traits consistent, like his intelligence and his prickly nature.
Their relationship might start off very rocky. Snape, being his usual surly self, would be suspicious of the street kid Harry. But as time goes on and Harry shows his tenacity and good heart, Snape could start to respect him a bit more.
There's also 'Snape: The Boy Who Could'. This fanfic focuses on Severus as a child, dealing with his difficult home life and how it shaped him. It shows his early encounters with magic in a very interesting way, with detailed descriptions of his emotions and thoughts.
One idea could be that the street kid Harry has some sort of magic that he doesn't understand and Snape discovers it. Maybe Harry uses his street - smarts to get out of tricky situations in the wizarding world, and Snape is reluctantly impressed.
Harry Potter could visit Snape in the hospital. Despite their past differences, Harry might feel a sense of obligation or curiosity. He could be there to finally have an honest conversation with Snape and perhaps gain a better understanding of his actions throughout the years.
Perhaps the kid is from a foreign land that Naruto visited during one of his missions. The kid could be an outcast in his own place because of some unique trait. Naruto, being the kind - hearted person he is, decides to adopt him. It could be that the kid has a different kind of chakra or a strange mark on his body that makes others afraid of him, but Naruto doesn't care.
Often, Kid Goku is portrayed as the carefree and adventurous type. He's always looking for the next exciting thing to do, whether it's chasing after a strange animal or exploring a new area. He might be a bit naive in some aspects, especially when it comes to things like emotions.