Yes, there're different sources to mine bitcoin. But first you have to make sure that which is the best and reliable platform and you can start mining. If you want to mine btc through some other sites then i suggest you that you should start with minimum investment. And if you want a big profit then you should be join different platform not a particular website for cloud mining. Cloud mining is best for beginners or newbie.
For cloud mining
Join this website for zero investment or (minimum) investment.
https://www.eobot.comThis is reliable platform.