19. Chicago, USA
Chicago, also known as the Windy City, is humongous. Despite its large size and 2.7 million residents, it is quiet and peaceful. This city has improved a lot over the years, especially the job market, diversity of people, and culture.
20. Singapore
This small country only has one city, but it contains more than 3 million citizens. The job market in Singapore is thriving with a maximum 2% unemployment rate. Traveling around the city is cheap and easy with their public transportation. Healthcare shouldn’t be a problem as it is extremely affordable.