Ransom Everglades is one of the top private schools in North America.Bloomberg/Getty ImagesMiami is experiencing a billionaire boom, with wealthy individuals and companies relocating there.Coconut Grove is very popular because of the schools, a real-estate broker told Business Insider.Ransom Everglades School and Gulliver Preparatory School have state-of-the-art facilities.Miami's billionaire boom has pushed up housing prices — and intensified c…