I use a large oak computer desk. Very solid,Heavy. The shelf under where computer tower and chair would be My DH took off and droped down so it is on the floor,I kept hitting my knees on it, Works perfect that way. I took the key board sliding Tray or drawer off, been thinking about putting it back on. just slips in like any drawer, someone else has one like mine and Her DH put dowels in for thread, Great idea. On the right is 2 cubby shelves and next to them on the right is 3 drawers. Plenty of room, very strudy on shaking. I love it. check with your second hand furn. and Thrift shops.
BillsBonBon