Allow visitors to register as role1 or role2

Hello support,

we’re currently using the membership plugin and would like to allow external visitors to register on our network either as role1 or role2 user, is there any way to include this selection option in the initial user registration form?

Role2 user then in future should be able to subscribe to a given subscription plan, Role1 users not.

Should we use the original WP registration process for accomplishing that? Thanks for feedback.