Rocket Chat & Wordpress Integrated Platform

We need to a platform where users can discuss on several topics and view the content managed by a CMS.
The platform will have a basic design which integrates a discussion board and CMS under the same look and feel.
The discussion board can be anything similar to slack such as rocket chat, discord, etc.
The CMS can be Wordpress, etc.
The platform will be flexible to scale handling thousands of users in the long run.