I've used VBCE.ca where in Canada I transfer EFT (online billing or Interac payment, or direct payment if Royal Bank/TD) to one of their local bank accounts, they convert to USD and pay out the US company in a local USD cheque or ACH but depends on amount/fees https://www.vbce.ca/business/importers but they also accept mailed cheques/couriers so you could set up an account there and just collect payments likely, customer only knows where to mail the cheque or where to send Interac B2B payment.
