1. Customer Community
2. Customer Community Plus
3. Partner Community
The Customer Community license is similar to a High Volume Customer Portal license and is well-suited for business-to-consumer communities with large numbers of external users. The Partner Community license is similar to a Gold Partner license and is well-suited for business-to-business communities, such as a partner community.
In addition to the new licenses, Communities supports all internal and portal licenses including existing Customer Portal, Authenticated Website, and partner portal licenses. Communities doesn’t support the Chatter External license. Exceeding the below limits may result in additional charges and a decrease in functionality.
Check the below link for latest and more information
https://help.salesforce.com/articleView?id=users_license_types_communities.htm&language=en_US&type=0
Check the below link for pricing
https://infallibletechie.com/2016/10/salesforce-community-cloud-pricing.html