Bulgaria is a very good compromise for Europeans. There is a flat tax of 10% and you keep the privileges of the European Union. The cost of living is very low, there are jobs in almost every European language in certain fields, and private property is not expensive. That's the choice my wife and I made, but it was made easier by the fact that we're flexible in terms of employment and have no real responsibilities other than ourselves, and that we've already lived in other countries that were more difficult in terms of integration and administration. What convinced me was the cost of electricity, which can be extremely low here with certain contracts, as I have a mining farm.
Slovenia was very pleasant, an incredible living environment, but the laws on taxation of cryptos are becoming disadvantageous, and it is undergoing too much Westernisation unfortunately.
Many people talk about Portugal, but personally, in all my calculations, I would have lost out there because the advantages were only temporary and for certain thresholds.