I purchased one from DM Bullard, a custom maker in Azle, TX. Comfortable, great quality, fair price, and only took about a month to get it. Google his name, he has a pretty good website.
I hope you mean clip IN holsters. That is a holster between you and your pants(inside the waistband) secured in place by a metal clip that slips over the belt.
A holster that clips ON your belt would be a bad choice, if it were available.