Yes, there are many fanfictions that focus on positive aspects of Cho Chang and Hermione's relationship, such as friendship or academic cooperation. You can search on fanfiction - dedicated websites and filter by appropriate tags to find such works.
Sure. There are a lot of fan - created stories about them that are centered around their roles in the wizarding world, like their contributions to Hogwarts during different events. These stories usually avoid inappropriate topics and are more in line with the general spirit of the Harry Potter series.
There are indeed. Some fanfiction writers choose to explore their potential interactions in a more platonic and positive light. For example, they might write about how Cho and Hermione could team up to solve a mystery at Hogwarts. By avoiding improper themes, these fanfictions can be enjoyed by a wider audience.