best cloud service

Can you guys suggest me the best cloud storage options I am looking for around 1tb minimum capacity options. Anyone ever used idrive and cheaper alternatives for this?

Is there any cloud service which can offer more than 5-10GB free Space with security other than GOOGLE DRIVE? And, if possible there should be some function which will define Access Permission to some particular folders user basis. Am doing some R&D over online Cloud services, so I need your...