There are few Portuguese training institutions in small classes, so I recommend you to teach Portuguese in Ouna. Small classes are limited to 4 -8 students, and the interaction between teachers and students in the classroom will be 3 -5 times more than that in other institutions, and the learning effect will be significantly improved. It's not hard to get in the door. Learn from Ouna's teacher, and you can basically enter the door in a month.