Try to use cloudmining site but its risky 
there are several sites cloud mining right to mine and has been reliable. there are bits x and hashnet.if I hear another site I don't really know. but who you know both of them have a small risk
I don't prefer to invest in cloudmining sites as it will not survive for a longer period of time and it might disappear in future, better to go for trading to earn quick money.
Cloud mining sites is all ponzi nd it Will turn scam without reaching your roi and 4theres long cloud mining existing but still it will turn scam one of this days. But to earn money is by joining in sig campaign you are right here and very good investment is to buy higher ranks account by that you can earn big money and passive money without worried to be scam and also you can earn money by posting yout abilities im service section if you can attract costumer well you can earn money by that.