As far as i know, Magento allow to manage the customers via group. We have four groups name by default in Magento: NOT LOGGED IN, General, Wholesale and Retailer. When the customer registers new account, the system will automatical set default group "General" to them.
However, in this case, i added new a customer group with the name: VIP Members and i want to set the new customers to this group, so how can i do it?
It is very simple, Magento CE 2.x support this feature by default.