It depends on your specific needs and the location you are shipping to. Some carriers that are commonly used for shipping high-value items include USPS, UPS, and FedEx. These carriers offer a range of services, including options for insured, signature required, and express delivery. It’s always a good idea to compare rates and services from multiple carriers to determine the best option for your specific shipment. It’s also a good idea to consider purchasing additional insurance to protect your high-value items during transit.