Best online retailer to buy from that ships FedEX/UPS

Hey all,

Weird question here, but I'm kind of living in the boonies in the United States and unfortunately, I can't get USPS packages delivered to my address. I CAN get FedEx and UPS, but a lot of retailers I'm finding online only ship USPS. Does anyone know of a good place online that ships FedEx/UPS? I want to get a decent amount of sealed product, but am struggling here :)