Well, identity crisis is very common. Sonic is used to being a blue hedgehog with super speed, but when he becomes human, he has to re - evaluate who he is. Adaptation to a new physical form and a different set of abilities or lack thereof is also a theme. And then there are the themes of friendship and love. His relationships with his friends might change, and he might even find new romantic interests in his human form. For example, in some fanfictions, Sonic has to learn how to communicate his feelings in a more human way, which was not necessary when he was a hedgehog.
There's also 'Sonic and Amy: High School Years'. In this fanfiction, they are high school students. It shows how Sonic's speed is translated into his athletic abilities at school, while Amy is part of the art club. It's a really cute take on their characters in human form, with lots of typical high - school drama and budding romance.
Romance is a huge theme. Many fanfictions focus on Sonic and Amy's relationship, exploring how their feelings develop for each other in their human forms. It could be a slow - burn romance or a more immediate attraction.
There's a fanfiction called 'When Sonic Becomes Human'. In this story, Sonic's transformation into a human is caused by a magical accident. The story then follows his attempts to figure out how to reverse it while also having to deal with school and making new friends as a human. It's really interesting to see how the author portrays Sonic's character in a human body, and how his friends react to his new form.
This kind of fanfiction is concerning. The Sonic character has been created to represent certain values like speed, heroism, and fun. Portraying him getting abused not only distorts the character but also might introduce inappropriate and disturbing content into the Sonic fan community. This could have a negative impact on younger fans who look up to Sonic as a positive role model.
Give the Okami in human form a backstory that ties them to their original form. Maybe they were cursed to be in human form as a punishment or they chose to take human form to better understand humans. Their actions should also be influenced by their Okami nature. For instance, they might be more in tune with the phases of the moon and act differently depending on whether it's a full moon or a new moon. Their speech could also be a bit more formal or archaic, reflecting their otherworldly origin.
Well, in fanfiction, Kurama's human form could be a really imposing figure. He might have long red hair, just like his fox form's fur color, and bright, piercing eyes. Maybe he'd be tall and muscular, with a sort of wild, untamed look about him, still carrying that powerful presence that he has as a tailed beast.
Often in fanfictions, Kurama's human form and Naruto have a more complex relationship. They could argue at times, especially when Naruto wants to take risks that Kurama thinks are too dangerous. But at the same time, they also share some really tender moments. For instance, Kurama's human form might comfort Naruto when he's feeling down about his past or his struggles with the village. They would have a deep bond that goes beyond just being a jinchuriki and a tailed beast.
A common theme is power exploration. Since Sonic is the ultimate life form, many fanfictions focus on his powers, how he got them, and how he uses them. For example, some stories might show Sonic learning new ways to control his speed or strength.