Can I immigrate to Northern Europe after studying in Northern Europe?

Nordic countries are generally traditional nation countries, not immigrant countries; Therefore, the policy of the whole country is also a non-immigration policy. Generally speaking, you can only be naturalized if you get married. However, with the aging of the population, it began to gradually accept new skilled immigrants. It takes at least seven years to apply for permanent residence in Denmark, at least three years in Sweden, at least four years in Finland and at least three years in Norway. (Editor: Shen)