What are the Top 10 countries to teach in?
Welcome to the forum! This is hard question to answer as it really depends on the individual's preferences and qualifications, Forexample, if you are looking for ESL teaching jobs, China, Korea and Brazil are amongst the popular ones
You might find this blog post helpful : https://www.teachaway.com/2015/10/09/top-3-places-with-high-teacher-salaries
Good luck with your search