The first choice for valuables is SF or EMS. The price of SF Express is 20 cranes, 1 kg, which can be safely delivered to your destination in 24 hours. Ems is also safe, but the time seems to be within 48 hours now, but the coverage of EMS is wider than that of SF. If it is a general item, it is definitely better to pursue material benefits. Then you can compare it with your local Tong Yuan, Shentong and Dayun. See which service you will be satisfied with (courier companies usually join, so the quality of service varies from place to place). The prices of these three companies are almost the same, and the price will be increased by 10 yuan/kg, and 5 yuan will continue. If the courier can't get to the place, you still have to choose EMS or parcel.
Ems is not recommended.