Shipping attributes

Hello, when I import from a shop on AliExpress, the shop offers two shipping options: one for the United States and another for all other countries. I’ve edited some products where the customer has to choose the destination country for shipping. This allows me to select the shipping company when I receive an order through Ali Orders. However, if I don’t include this option as an attribute, I can’t choose it when fulfilling orders. Is there a user-friendly way to avoid customers having to choose the country option on the frontend? Instead, I’d like to choose the shipping company when I receive the order. Thank you.