I have a used black Ikea Malm desk for sale. It is currently partially disassembled, but it is in the three main pieces, so it will go together in just a few minutes.

The first photo is a stock photo I found. IT DOES NOT HAVE THE PULLOUT PART LIKE IN THE PHOTO. It is just the 3 sides. There is some damage on the back portion of the desk top from a monitor stand that used to be there. If you're using a monitor arm, it will probably cover this. But the damage is the reason why I'm listing it so cheap.

Desk top is approximately 58x33 inches.

Feel free to text me with any questions. Thanks for looking!