Avoid too small a mechanism.
Give priority to training institutions with good reputation and long establishment time. What I am most afraid of is that my classmates spent money and the organization ran away. You don't have to worry about choosing a reliable institution.
prominent teacher
A good teacher can make the class interesting. Class is very interesting. When choosing institutions, priority should be given to institutions with a large number of teachers and rich counseling experience.
Collect students' opinions online
Now is the information age, and many things you want to know may be found online. You can search the student comments of this institution on the Internet yourself, or sneak into the Q&A area of the post bar. Although it is normal to have negative comments, after all, it can't meet everyone's perfect expectations, but if you see a lot of negative comments, you should choose this institution carefully.