Players in Lobby

I'm trying to get a list of all the players inside a lobby, I've searched the internet in case anyone made this system possible but no luck, The only idea that I have is using chat services, whenever a players join a lobby, that players sends a message with their name and level, and the other clients are recieving it, I doubt it's the best option but it's all I got.
Also, some people ask why we need such thing in lobby, it's because while waiting for a room people would love to talk in lobby where more than 10 people can see the message, Any ideas other than chat?

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