If you want to keep your margins high, ocean freight is definitely the way to go compared to air. Many new sellers find that using cargo delivery from China to the USA from logistics services DiFFreight
https://diffreight.com/en/napryamok-kytay-ssha , provides a great balance between price and tracking reliability. It’s always smart to consolidate your shipments to save on port fees. Just make sure you have all your customs paperwork ready to avoid any unexpected delays at the border.