I'm not sure specifically which 'professor membrane x fib fanfiction' stories are the best. You could try searching on fanfiction platforms like Archive of Our Own. There might be some hidden gems there.
The relationship could start with mutual suspicion. Zim sees the professor as a potential threat to his mission, and the professor notices Zim's odd behavior. As the story progresses, they could find common ground in their love for science. For example, Zim might be intrigued by the professor's advanced experiments and the professor could be curious about Zim's alien technology.
One common theme could be the clash of their different personalities. Professor Membrane is often seen as a scientific and somewhat oblivious figure, while Dib is very much into the paranormal. So, the contrast can lead to interesting interactions.
One idea could be that Professor Membrane discovers Zim's true alien identity in a rather comical way. Maybe during one of his experiments, he accidentally uncovers Zim's hidden technology and Zim has to come up with a crazy plan to convince the professor it was just a malfunctioning toy. Another could be a story where they team up to solve a scientific mystery that threatens both Earth and Zim's home planet, Irk. They start off as enemies but gradually realize they can learn from each other.
Yes, there are quite a few. You can start by looking on fanfiction platforms like Archive of Our Own. There are some really creative takes on the Dib and Professor Membrane relationship in those stories.
There might be some great 'professor membrane x dib fanfiction' out there. You could also check fanfiction.net. Sometimes, it has unique takes on different character pairings. However, it can be a bit of a search to find exactly what you're looking for in the sea of stories.
One interesting aspect of Professor Venomous x Reader fanfiction is the exploration of an unusual relationship. It often delves into how the reader character might interact with Professor Venomous, who is a complex and often villainous character. Writers might create scenarios where the reader tries to understand his motives or even attempts to redeem him. It can be a really exciting genre to explore as it combines the allure of a unique character with the personal touch of a reader - inserted story.
A popular trope is the 'fish out of water' situation for the reader in Professor Venomous' world. The reader is often an ordinary person thrust into the extraordinary and dangerous world of Professor Venomous. This creates a contrast and opportunities for growth and interesting interactions. Also, the 'forced proximity' trope is common, like they are stuck together in a certain situation which forces them to confront their feelings for each other.