Hi Sadia. I'm Cindy. At my last house I put a desk under the stairs. And I used it a lot. I had my computer and printer on the desk. It worked well for me.
What are the dimensions of the space you have to work with?
Is it tall enough to stand up in? Is there a doorway leading into this space?
Posting a picture would be helpful to see what you have to work with.
Just saw an idea where someone put a wine cellar closet under the stairs with glass doors and lights. Looked amazing. Just another idea:)
I added shelves to mine and store things like vacuum cleaner and suitcases. It's also a great craft nook.