I ignore current temporary conditions and consider what countries have been for centuries, and what they are likely to be centuries ahead.
Japan could be one. It has fascinating folklore. It has some severe challenges ahead. Most of its population will probably emigrate, since it doesn't have enough arable land. Seafood will be much harder to get as ships run out of fuel, climate change acidifies the ocean, and many starving nations overfish everywhere. It might get wrecked in a war with China. If it survives those challenges, then the Japanese future looks fine, eventually.
Russia will eventually shake off the European influence and develop its own Russian culture, based on sobornost.
At least one, maybe several South American countries fit here. Climate change could make more of Argentina habitable. Like Russia, they all need to drop European customs and start doing what works in South America.
The USA nation is temporary, like all nations, but the spirit, character, nature, etc. of the country will remain when the nation is gone. This is several countries temporarily in one nation. Each country has its own spirit.
And maybe a couple more Asian countries.