To hold my drawer, I built a simple three-sided support box and fastened it to the tool stand rails. The top of the box serves as a handy shelf for additional storage. A pair of full-extension drawer slides make it easy to access the entire contents of the drawer.
The drawer is sized to fit the box, allowing space on each side for the drawer slides. To hide the box and drawer slides, I installed a false drawer front. You can see how the ends of the drawer front are tapered to match the angle of the legs of the tools stand. The last things to do are fasten the false front with a couple of screws and add a handle.
If you want to add multiple drawers, you can build a taller box to house the drawers. Just make sure it fits the opening in the tool stand. Then, you can cut each false drawer front to fit, as before.