This app was mentioned in 2 comments, with an average of 1.00 upvote
There have been several live chats options in the past, but none of them took off AFAIK.
SWCT-Chat.tk (which is currently connected to StarWarsCardTraderApp.com)
https://hack.chat/?swct (Android app)
There's one more, but I can't find the URL at the moment...
I forget, do you use Android or iOS?
There is a hack.chat app for Android: https://play.google.com/store/apps/details?id=chat.hack.hackchat