We recommend you visit your local home/hardware store and obtain a stain brochure in the paint/stain department. Take the brochure home and hold it up to your existing furniture to see which best matches.  Because wood varies in the way it takes and shows stain, it will not be a perfect match, but it will be close.
Minwax is the most common stain brand. We do not use the Polyshade product or any stains with built in finish. If you click on the stain chart on our web pages, you can see a larger, higher definition graphic of the stains we offer. If you would like to stain and finish your furniture yourself, we will ship you an unfinished version at a 15% discount.