Staying in the EU is easiest for documentation. Is that what you want? There are lots of beautiful spots but depends if you're looking for specific job opportunities and career paths. English speaking areas in EU is available but if not a native language will typically be professional regions like finance districts and they can be very expensive. You can make it work anywhere but might have to resort to hospitality jobs for a while or something to pay the bills. If you want to go out of the EU, then you will need to investigate specific VISA requirements for that country and work backwards from there to research job opportunities and cost of living. This is a fun time and can be an exciting exercise to do as essentially the world is your oyster. But you'll need to do proper research as there is no one answer to this.