Macbooks

you can create multiple user accounts and both can have their own individual iCloud accounts. here is how you can go about doing it

Multiple users on Mac

Add a user

1. On your Mac, choose Apple menu > System Preferences, then click Users & Groups. ... 
2. Click the Add button below the list of users.
3. Click the New Account pop-up menu, then choose a type of user. ... 
4. Enter a full name for the new user. ... 
5. Enter a password for the user, then enter it again to verify. ... 
6. Click Create User.