Everyone's needs and ideas are different, and their conclusions are different. The most important thing is to choose one that suits you, and you will feel more relaxed and happy in class. First of all, whether online or offline, it is recommended to listen to the audition class first and feel whether the lecturer's teaching style is acceptable. If you are offline, you can go directly to the field. Secondly, you can choose a higher price. Finally, I hope you can choose an institution that can help you pass the teaching aid.