Cloud mining 101 said scrypt.cc is ponzi
So, i won't recommend it
And, I heard you have to buy at least 1THS at hashnest
So, i think Bit-X is the best choice for low / zero minimum purchase
I have an account on Hashnest.com and can confirm that you can choose to buy low GHS Amount on the market. There are 5 or 15 or 40 ghs for sale for example right now on S5 market there. There is even 1 ghs: 04-20 18:55:57 1.0 0.00138101 0.00138101
You can buy on Bit-x too and I recommend both since they are both on top of cloudmining business at the moment.
scrypt.cc like a lot of or even mostly all others is a very likely ponzi and scam since they provide no proof of anything.
More to take a look at would be: genesis-mining, kryptologika and eobot. I know, i know - eobot is considered not reliable, but it has been around for very long in crypto terms and I had no problems with them at all. Now they paused mining because of bitcoin low price, but will resume as soon as it starts to rise again.