whats best for you?
But we cannot tell you the best location for you and your family as what is the best location for me, will not necessarily be the best location for you. I mean how old are your kids? Do they need to go to school, kindergarten etc? Do they have any particular medical problems that mean you need to be near good medical facilities...
Do you want to live near the sea? In the mountains? Close to a city, more rural?
Much of course will depend on budget - if you need a good family sized home with large garden and only have 20,000E say then you will have to forget being right on the sea, if you have 200,000 then a totally different matter.
You cannot decide that you are moving your family to a country you do not know and ask others to tell you the best area. We do not know you or what you are looking for.
But if you tell us what your plans are for work out here, for your kids, what you want to do, size of house, idea of budget maybe, number of bedrooms, whether you want to be near the sea, in the mountains, in a city, in the countryside and so on we can try to help more.
Rachel