Hello Christian,

As soon as both the profile types are published, the user will be able to select which profile type they would like to register under. If you have activated the quick registration, you might want to disable it because they will see the quick registration form instead of a registration link.

To disable it, you can do so here, http://take.ms/0yrBM . If you still want to display the quick registration, you could create a menu item which links to the registration page in EasySocial.

As for your implementation of allowing "associations" to post blog post, here is what you can do:

1. In your "Associations" profile type, also include the "Author" joomla user group shown here, http://take.ms/zCQwT

2. In EasyBlog > ACL, configure the Author Joomla user group to be able to post and publish blog posts