I'm surprised you couldn't find one. This is the only foundation I have found that matched my skin perfectly! What I usually when I can't the perfect shade though, is get the 2 that are closest to my skin and mix them.
If you have a foundation at home that is your perfect match, bring it with you to the store and hold it up to the bottles until you find the one closest to that color that matches you! If you go to ulta or cvs you can buy a couple and return the ones that don't match.