Do a Bezos and use a door. https://www.aboutamazon.com/news/workplace/how-a-door-became-a-desk-and-a-symbol-of-amazon
Two drawer units and a kitchen worktop of your choice. Job done.
IKEA kitchen worktop with drawer or the legs from the office range.
i use a generic dining table i got from amazon!
What are you after specifically? What features do you want that make it a computer desk instead of just a generic desk?