BuddyPress.org

To get you started create three new profile fields for users to complete, probably radio button choices, the users will select one of these at signup? make the selection obligatory.

Now in the members profile loop you will use a simple check to determine which field has been returned or selected by the user and display whatever particular elements you want for that selection.

The code used here is not the type you want, in a profile loop it’s easier as you can run checks using something like:
if(bp_get_member_profile_data( ‘field=account type’ ) == ‘special’) :
‘ Do stuff based on the type above’;