I'm assuming that "Free" is a brand name (in which case it's a stupid brand name), and that it's not that you're expecting stores to give away salad dressing for nothing. If it's the latter, the answer to your question is pretty much "Duh."
However, if it's a brand (or type, maybe you meant fatfree), you should talk to the store manager and ask them if they carry it or if they can get it. If enough people do this, the store may start carrying it ... a store will generally stock whatever they think they can sell for a reasonable profit, and if people are asking for it, that's evidence that the demand is there.
Fresh Market carries Christie's Greek salad dressing.
some salad dressings have gluten, you must consult with the manufacturer of the salad dressing to find out whether or not the salad dressing you wish to consume is gluten free or not.
Krogers
DryTown Vet
You can find great homemade salad dressing recipes from a good general cookbook available from your local library or bookseller. Failing that you can try forums or blogs.
french dressing, or caesar dressing which you can find in a bottle in a supermarket for a very good price
Find a good recipe and have lite or no salad dressing ! I recommend adding fruits for flavor and moisture to make up for the lack of fatty dressing.
Ranch
One can find good recipes for making salad dressing by visiting the websites Allrecipes, mrfood, Bon Appetit, Food, Wellness Mama, Eating Well and FitSugar.
Although this seems obvious to find in the condiment/salad dressing aisle of a grocery store, I have seen this in the ethnic aisle, usually where the small unfamiliar brands and items are located.
One can find an affordable dressing table set at several different stores. Some of the stores that one can find an affordable dressing table set are: Target, Bed Bath and Beyond, Walmart, and Ikea.
You won't. The product is no longer made.