"Xing Shuai Education" and "Zhou Dajie" are all taught by ps. There are open classes and fees. It depends on your own situation and needs.
There is also a ps teaching video in Tencent Open Class, which is recorded and broadcast. You can ask the teacher online if you have any questions about the live broadcast. These open classes are free. These teachers are all from some ps teaching websites. They may ask you to pay attention to or sign up for a project, and it is up to you to judge what the project is, how it is, whether it can be trusted and whether it is necessary.