I used to have an investment in bitvest.io and the return were better than interest on banks, I would recommend doing that. You also should consider betking.io as a good investment site.
As of the word cloud mining, I don't trust them, there might be some legit and trustworthy cloud mining but most of them are a slow HYIP. I might be wrong but I would never suggest anyone to believe them.
There are many more ways to invest bitcoin, direct or indirect with the level of risk you want to go with, you can have variable returns.
Cloud mining you should go straight to hashnest. It provides a safe and honest chance at ROI, there is no guarentee. But with it being part of Bitmain you have the trust there, and you actually have hash out there. It is not fake like so many other sites. I would take hashocean site off your list above (also it has a referral on it not allowed it's the ?rid= and after that needs removed).
Also another valid solution for mining is buying gear and having it hosted somewhere. There are a few choices out there on this. But chances are again the gear will be Bitmain if you want current gen S9. But I like owning gear personally.