Baiyou Zhixue and Mr. Zheng are both good. Baiyou Zhixue is an online education platform focusing on K 12 stage, which provides tutoring courses in mathematics, English, Chinese and other disciplines. Its teaching methods are mainly through live classes and recorded classes. Teacher Zheng is an educational platform based on 1 to 1 online tutoring, which is mainly aimed at students' after-school tutoring and learning improvement. Both Baiyou Zhixue and Mr. Zheng are online education platforms for students, but their education methods and curriculum settings are different and each has its own advantages. Therefore, Baiyou Zhixue and Mr. Zheng are both good.