The main US fintech banks are Payooner, Transferiwse and Mercury.
Payooner allows to receive payments only from US companies. Individuals and corporate accounts available.
Transferiwse is the most used one. Individuals and Corporate accounts.
Mercury is focused on US entities. They will shut down the account in case you have no US clients and you're not a US citizen. Corporate accounts only.
All three work great if your business in legit.
Remember that dealing with USD is high risk, due to enhanced supervision. All transfers must be approved by the FED.