switzerland: possible - but many migrants complain about it being almost impossible to get accepted there beyond being a law abiding work force.
scandinavia: (not a country) strong contestants.
estonia: not really - i have several estonian friends who will give you a long list of reasons why germany is the better place to live and work. personally, i really like estonia. have been there many times.
uae (or singapure): sure ... but you are discrediting yourself by even mentioning those in this list or possibly considering them as a place to live.
first three are all in EU by the way - and very close to germany. so the good news is that you can just easily try to move there. have a nice trip.
The UAE has excellent administration.