Regardless of where you live ,there will be a mail forward service for your area. Some services only forward letters. Others take all your mail, re-parcel it into plain wrapping and send it on by either regular mail or by Fed X courier etc.
Once you decide to go with one of these services, you will need to shop around to find the one that offers the right service for your particular needs.
Examples of these virtual mail forward services include (in no particular order):
As one website says: ‘You can use this address to give others the impression that you or your business are located in Vancouver as opposed to the city, province, state, country or continent in which you currently reside.’ They then add: ‘We can even repackage your mail for added discreetness.’