I havnt used any cloud mining site i guess the last 6 or more years , only once used Genesis Mining but i dont recommend them or any other site.
The only one that makes profit out there are the Mining Sites and not you , if you buy the coin and hold it would the best for you in my opinion.
On the long term you will driving better to invest in the coin you want to mine , or buy a miner and do it yourself , but this is only profitable if you have free electricity.