I use three cloud mining platforms.

Minergate.
Easy to use interface.  Profit over 12 months is low. After 11 months of mining  you break even. After that you will see a daily passive income. Rubbish support though, and currently they have a BTC withdrawal issue.  I have 32476.7152 GH/s with them producing approximatly $35 per day.

https://minergate.com/a/fccb58faf2c81505fc5d6d0e

Skills Dragon/ Lifestyle Galaxy
Offers MultiMining coin mining and BTC mining.  More profitable than Minergate.  I currently have 22.5TH with them and I earn approx $15 per day. But the perchase of the mine is less expensive (hence more profit.). You break even with BTC after about 7 months. I currently also mine EXP which is very profitable. You can break even after only 3-4 months. The contracts are for 3 years. But any hashrate you buy via repurchaseare yours and will keep mining indefinetly as long as mining is profitable/

http://strawman.skilldragon.com

I also use Genisis mine but currently they are out of stock for BTC minien kit

I hope that helps