Ive been using sun mining for a month and a half. They had some very goid prices for a while still not too bad. Prices went up same time as hashflare which i also use. For example 10,000 gh/s is $1650 usd. About $460 a month profit.
Last month it was about $1300 and $550+ a month. They have contracts for Bitcoin, Ether, Dash, and Litecoin. Bitcoin contract ladt 3 years, and others 2 years. They have been going strong for some time now so if you cant use hashflare try sun mining link below. Be advised, Due your reasearch and on any investment you can be risking money!
https://sun-mining.com/en/prices/?ref=18816