Hello, Aqibrao! First of all, I would like to emphasize that gambling is not a safe way to receive income, because there is always a high risk of losing everything that you invested in a particular casino. So, you should be as careful as possible when playing it, remember it! My personal preference would be FreeBitcoin faucet. This is a well-known website that have existed for a long time. It is pretty fair and there are many other features in addition to gambling.