While we do not directly support 2FA through Visible, companies who utilize a Google workspace can enable Google sign-in as an avenue for you and your colleagues to sign into (or sign up for) Visible.
Since Google supports 2-Step Verification, this should be a way for you to utilize it with your Visible plan. Check out this article on how to turn on 2-Step Verification within your Google workspace or this article on how to turn on 2-Step Verification on your personal Google account.
This would be a work around to have this added layer of security with using Visible.
Please let us know if this is helpful or if you would have any additional questions.