Thailand is a hot destination for tourists and people from all over the world flock in to watch the amazing natural beauty these country has. Some of them fall in love with this country, the people, the food and the culture and decide to stay back or, at least, stay for a long time. If you plan to stay longer in Thailand, you should find a job to support yourself. Thankfully, if you are a native speaker of English, there is no dearth of teaching jobs for you in Thailand.
The nation of Thailand is trying to speak better English as they want to cater to the tourists better. English is the international language for communication and thus, they need it for international trading as well. They need English for higher education abroad as well. Thus, they are trying to entice foreign talents to teach English in the country. The Thailand English teaching jobs also pay well because they want the best talents. Specifically, the international schools in Thailand pay amazing salary with multiple other benefits to the teachers. The salary of the trainers at the local English teaching institutes are good as well. When you take purchasing power parity into the equation, the salaries become ever more interesting.
However, you will need a TEFL or TESOL certificate to start teaching in Thailand. You can get it done at your native country before coming or you can choose any institute in Thailand itself.