Pirate Ship offers great USPS discounts—up to 87% off—and simple,...

https://wiki-net.win/index.php/Does_Shippo_Support_Batch_Label_Printing_Too%3F

Pirate Ship offers great USPS discounts—up to 87% off—and simple, straightforward shipping for small sellers. But if you need access to DHL Express or prefer live support over email-only help, Shippo might be the better fit