Best way to teach in Brazil?

I have a college degree in English, I'm currently working as a substitute teacher in the U.S., and I've taught English in South Korea. I would love to teach in Brazil this summer, but it seems every internet search just leads me to someone trying to sell me their ESL or TEFL course with "job placement istance." I feel qualified without having taken one of these courses, but I just don't know where to find a legitimate company looking for TEACHERS, not prospects to buy their course. Any help???