What a crypto telegram channels do you know? (by eng)
There a lot of crypto group on telegram it depends on what you are looking for if you're looking for a bounty group for the crypto you can check out this group @WapinterBounty, @CSBounty, and @BountyDetectiveCommunity
what the OP is asking for is the cryto news telegram, not the bounty manager telegram, I don't think it's rare for a group telegram to provide the most up-to-date news about cryto nowadays most group telegrams are made into places for spam
most of the news channel have their own website to earn from every visitors and ads so I don't think someone will move in telegram to create news in crypto unless telegram also have the opportunity to earn while having channel which is not possible to happen.
To Op I think its better to follow other social media channel of popular crypto news like facebook than in telegram..