Some non-aligned countries in South-East Asia are comfortably advanced and relatively strife-free: Malaysia, Indonesia. Some South (not North) Pacific countries are also possibilities, some South American countries are possibilities. The problem with all of these is that they are too small and powerless to be secure in a global conflict.
The most isolated country is New Zealand. It is advanced. It is not wracked by internal strife. It's main problem is that, being one of the 5 eyes, it will almost certainly be drawn into a global conflict. On the other hand, it is possibly sufficiently isolated to escape most of the conflict. Then again, it is very powerless and could easily be over-run by a dedicated task-force while its more powerful friends are kept busy elsewhere. (Think of what happened to Holland in WW2.)
As I said earlier, no country in the world meets my criteria at present.
I also would like to move to a suitable country. But .... There is no country on Earth at the moment which conforms suitably to my criteria.
For what it's worth, New Zealand while not particularly suitable is more suitable to me than other countries at the moment.