Happy to see recommendations, unless its about bounties, DeFi, HYIP, ponzi, signals, ICOs...
The closest ones that might be fit your criteria are the official Telegram group itself of some big trading platforms today.
Binancehttps://t.me/BinanceExchangeKucoinhttps://t.me/Kucoin_ExchangeThese are English Groups. Other languages are also available. Checking at these groups, you will see some
"real traders" sharing ideas.