Its not exactly a chat, but I get a lot out of being active on Crypto Coin Trader, a facebook group about crypto.. lots of pros there along with noobs, so it creates alot of learning/teaching oppurtunities with fun dialogue.  As far as other things I talk alot in various coin chats on Telegram.. I especially love TRON/XVG and places with lots of noobs/whales so you get an interesting blend of opinions.. its also good to tap into the sentiment of the core holders of what youre trading to help make decisions of entries and how people react to FUD.   I'll be looking back at this one to see what other ideas people come up with because I just love chatting/communicating while waiting for trades to clear and I'm sure there are tons of sources people will know of here.