Which countries have looser requirements and restrictions on immigration, and why?

Australia, New Zealand, Canada and other immigrant countries have relatively loose immigration policies. It depends on your conditions and what kind of immigration you want to be. Anyone who meets the requirements such as education, vocational skills, English and many years of work experience can apply for skilled migration at low cost. If the economic conditions are good, you can apply for investment immigration, and Australian investment immigrants can have 2 million yuan. Of course, all countries in the world can immigrate through marriage.