Sorry this took so long, but here are some fics with similar vibes I think you’ll enjoy!!
Space Jam by Pangea — sort of a Star Trek-inspired AU where Charles is the ‘first officer’ to Erik’s ‘captain’ who’s been in unrequited love with him for years and it all spirals out of control on their newest mission.
Shop Space by Caradee — Charles and Erik broke up, but are still friendly and see each other at their favorite coffee shop. This is fine until Erik starts bringing by someone new (you may recognize him :))
X!Men: First Day by abbichicken — a prompt fic based on The Devil Wears Prada, where Charles is Emma Frost’s newly-hired frumpy, hopeless assistant on his first day. The Cherik is minor since it’s just his first day, but the vibes are there!
you can leave your hat on by endingthemes — Charles is a socially awkward professor with his head in the clouds, and Erik is a student and stripper who finds him more interesting than he thinks he is.