Apart from 2CO which are not really supportive of drop shippers (especially ones that are just starting) do you know/use any other payment gateway that does not require LLC and a US residence and actually works?
The ways to get a merchant account for a business that is not registered in United States and like to sell their products in the country.
The basic requirement of getting a merchant account in U.S. these conditions have been fulfilled:
The business needs to have a registered “Doing Business As” name (DBA) that proves that the business is incorporated in the United States.
A physical address of the business that an applicant must provide.
A bank account in the U.S. Bank should be registered in the name of applicant’s name.