Maybe you should get information from the altcoin discussion board: https://bitcointalk.org/index.php?board=67.0. I heard that some people made some money from Notcoin, I didn't engage in it so don't have any experience. But from the news I gathered most of the Telegram airdrops are a waste of time and resources. Many people who invested or engaged in it regretted it because they made nothing substantial from these telegram activities. I will advise that you channel your energy to something profitable that can give you the resources to buy Bitcoin and other well-known altcoins instead of gambling with these telegram games.