Here is a link where you can purchase creative cloud: Creative Cloud pricing and membership plans | Adobe Creative Cloud
Just so you know, when you join Creative Cloud the licensing allows you to use it on two different computers, typically a home and a work computer.
Also, you can install it it on as many computers you want but you can only use it actively on two different devices at one time. To get the CC on third computer, you will need to deactivate it from one of the computer.
Let me know if this helps.