One great way is to create alternate storylines where the villains reform. Picture Maleficent turning good and helping the princesses instead of cursing them. It adds a new dimension to the characters and is a positive spin on the traditional stories. Also, you could write about how the villains interact with each other in a non - combative, more comical way, like a meeting of all the Disney villains where they try to outdo each other with their evil plans but in a humorous way.
You can focus on their backstories. For example, how the Evil Queen in Snow White became so jealous. You can explore the events that led them to become villains in the first place.
Appropriate fanfiction about Disney villains could involve them in different settings. For instance, put them in a modern - day city and see how they adapt. You could also write about their relationships with other non - Disney characters in a fictional crossover. Another idea is to explore their inner thoughts and feelings during key moments in their original stories. For example, how Jafar felt when he finally got hold of the lamp. All of these ways keep the fanfiction in line with Disney's family - friendly nature.