Do you have any antique malls near you? Antique is a flexible word here
but you might tour one, and look for dealers whose booths you admire, then ask if they will market your quilts as part of their stock? Probably not practical if you do bright modern quilts but with traditionals it might be an outlet. If you have enough might be an idea to rent your own booth?
Selling on commission around here, the marketer takes about 40%. So you set the price you need/want and they add 40% to it Doesn't make a very likely successful selling for profit scenario.