Jitsi Meet WebRTC video conference
Just visit https://meet.jit.si/WikiSuite with a modern browser, and ask a friend to join you there
XMPP chat: Openfire + Converse
Please see: https://wikisuite.chat/XMPP
Tiki Wiki CMS groupware
https://demo.tiki.org/
We are working on creating more interesting demos, especially to showcase http://tikitrackers.org/
Xibo
https://app.xibo.org.uk/shop/cloud-demo
Cypht
No demo available yet
See also: How to build a system to demo WikiSuite