Try eBay or some other online store that carries US parts.
I found one here: [https://www.ebay.com/itm/USA-For-Motorola-Moto-G7-Power-USB-Charging-Charger-Dock-Port-Flex-Replacement/143853888617?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20201210111314%26meid%3Dfbf3e35ac51647a88bc0a414da5f00fd%26pid%3D101195%26rk%3D2%26rkt%3D12%26mehot%3Dag%26sd%3D254337947629%26itm%3D143853888617%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWebWithDarwoV3BBEV2b%26brand%3DUnbranded&_trksid=p2047675.c101195.m1851|USA For Motorola Moto G7 Power USB Charging Charger Dock Port Flex Replacement]