If your desk doesn’t come with its own set of drawers, or there’s any flat space underneath the surface, consider tacking on an organizing tray that will glide in and out as needed.
Ideal options could include a cabinet in your current desk, a tall office cabinet, or even an existing shelf. For instance, ...
Standing-desk converters top out at around 20 inches; the shortest recommended converter below tops out at 15 inches. You’re aiming to have your desktop or keyboard tray at elbow height ...