Beacon Yamsaard intl school here in HuaHin is a very reputable school, and I have spoken to several teachers from foreign countries that works there. Hua Hin Intl School is also good,,,and Hua Hin is a very nice town, 3hrs from Bangkok, and right on the ocean with beaches and lot's of golf courses if you play too.
certain destinations from an Intl inbound are automatic, follow the signs in the concourses for transfers to chiang mai, phuket and other excempt cities and go thru there without going to the main area.