SSO a-la-carte option (addon for normal plans, not enterprise)

SSO has become widely accessible and easy for small teams and startups to implement (it is baked in to many of the google/microsoft365 plans at this point). It also significantly increases security and compliance while decreasing administrative burden. As such, I would like to ask for SSO to be available outside of the Enterprise plan. Ideally, it would be a free offering, but it would be reasonable to charge a small amount per month per user in addition to the base fee.

For more information on why SSO should not be an enterprise only feature, please see the following articles: