What could OP probably be looking for that isn't in the gambling discussion board of the forum? Most communities in Telegram and Discord are full of scammers. The forum is the best as far as I know. Although there are other communities on Reddit. Perhaps he can try there, but i bet he can find any community better than the forum especially in terms of gambling.
That is why it is good to know how to avoid scam. If someone do not know how to avoid scam and the person join a Telegram group, scammers will notice and start messaging the person. Also if anyone says they should buy predictions, he should avoid it. Everything have to be free.