Visitors walking around the Plaza de España in Seville, Spain. Credit: Gabriele Borgioli/Getty Images Key Points Portugal is a top destination with excellent affordability and outstanding healthcare, offering both public and private options.Mexico remains a popular choice for its low cost of living and diverse expat communities in cities like Mérida and San Miguel de Allende.Spain ranks as the best country for expats, balancing vibrant city life with some of the world's finest beaches. As of October 2024, there were 5.5 million Americans living abroad, up about 100,000 from 2023. Be it for work, school, family, or in search of a better life, more and more U.S. citizens are looking for new homes around the world. I should know: In 2021, I became one of them, moving from California to Portugal. As an expat living abroad, I can honestly say it's been a fantastic experience and a decision I would make over and over again. However, it's also not as easy as it may appear.…