Hello Gaurav,
Yes, with our product SAP SSO we support 2FA with RADIUS server in general and not only the RSA.
We also support 2FA with Time based One Time Passwords (OTP) with the latest release - SAP SSO 2.0 SP03. This is a solution for customers who would like to enforce stronger authentication but do not want to implement and support full RADIUS server. Using this solution the employees could generate OTPs simply using their mobile phones. This solution is cheaper and requires almost no support. More details you will be able to find in this article:
Stronger Authentication with One-Time Password Solution
Best regards,
Donka Dimitrova