An Individual Tax Identification Number (ITIN) can be used as an alternative for a Social Security Number (SSN) in some cases and is not a requirement in most cases. However, you may be required to have one if you wish to apply for a PayPal account.
Doola can help with attaining an ITIN for $499. You can read more about ITINs here. Please note, that we can only apply for your ITIN once you receive your EIN.