If you have trading skills, btc/usd pair. If not, try to learn or hold for the long term. I recommend avoiding cloud mining sites. Good luck with that.
Cloud mining investment is definitely a waste of money, you have no assurance if business really existed, anyway this is just my opinion but if you love to take higher risk you can do what you want but at least I have warn anyone here about that kind of business.
Cloud mining would not give you any assurance and they are just total scams and you didnt even to reach your roi and they would ran away. Thats why i didnt trust those kind of schemes because it would waste your money indeed. Theres a lot of ways to earn here in bitcointalk forum which you could sell off your skills and stuffs and also there are micro earning jobs here just try to research.