Maybe a fanfiction where Rose and the Time Lady have a time-traveling adventure to a lost civilization and uncover its secrets. There could be lots of drama and action along the way.
You could come up with a story where they team up to face a powerful and ancient evil that threatens the entire universe.
How about a story where they get stuck in a time loop and have to find a way out together, facing all sorts of challenges and revelations? That could make for an exciting fanfiction.
You could write a story about their adventures in a different time and place. Maybe they encounter a new threat that tests their friendship and skills.
You could have a fanfic where they team up to face a common enemy in a new adventure.
There could be all sorts of fanfiction. Maybe they have wild reactions or get inspired to go on their own adventures.
You could write a story where the Doctor and the Muppets team up to save a magical world. It would be full of fun and adventure!
You could write a crossover story where the Doctor teams up with the Avengers to save the universe from a combined threat.
You could imagine a scenario where Doctor Who and The Avengers team up to save the universe from a time-traveling threat. Maybe there's a villain manipulating timelines, and both teams need to combine their skills and knowledge to stop them.
It could be a humorous adventure story where Master and Ten team up to solve a mystery involving lemon-related oddities in the Doctor Who universe.
You could write a story where she has adventures in time and space inspired by her love for the show.
One possibility is a tale where a Time Lord gets involved in the Game of Thrones' political intrigues and uses time travel to change the course of events. Or imagine if a White Walker was accidentally transported to the Doctor Who universe and caused chaos.
You could write a time-travel adventure featuring Alexander Holmes and the Doctor facing off against a powerful alien threat.