I would recommend our product - Chatwee. It comes with a bunch of various features and is extremely easy to integrate: https://xenforo.com/community/resources/chatwee-chat.6438/.
Hello XenForo community!
We’d like to share with you our social live chat add-on and instant messaging platform that will enhance the experience of your forum users with a real-time communication feature.
Chatwee is a group and private live chat you can easily install to make your forum more...