However, grammar is not very important for children If the child is older, you can choose to give the child a new concept course, because this is still very authoritative in China.
If I recommend it to you based on my experience, it is better to combine oral English with listening, so that children can learn a language fundamentally, instead of just watching and not talking.
You can choose all the schools where foreign teachers attend classes, such as:
Shenyang World Trade Center, all of which are foreign teachers, has free audition classes, so it is appropriate for you to finish the audition. Children also like foreign teachers to study after class. You can choose more and listen to their opinions.
I hope I can help you.