Darlene, to answer your question, yes. There are garter belts online made for CD’s. I can’t quote you site names off the top of my head, but I would suggest Amazon, or one of the stores advertised here on CDH.
The width of the waist band also will figure in how yours will ‘ride’ your waist, as well as how high or low you have sized it for.
Unfortunately for a lot of girls like us, trial and error can get expensive if we do it all on our own. Some lines have a rep that you can chat with when you are looking at their site. Get ALL of your measurements before hand to help you find what you need, waist above your navel and just below it, your hips also. You will also need your bra size if you buy an ‘all in one’ teddy wit attached garters. An open bottom girdle with garter straps could also be what you need.
Good luck, and have fun shopping.