Which countries are suitable for single immigrants?

Tolerance must mention Europe! After all, 26 countries in Schengen have no border control, and frequent population movements are not comparable to other countries. Therefore, this is destined to be more inclusive here. The more developed the country, the higher the quality of the population and the more inclusive it is; In addition, the southern European coast has been opened; So you can choose from the following countries: Sweden, Austria, Czech Republic and Greece.