How about the safety engineer course of Henan Zhongan Jianpei Education Notes? Is it okay?
This online course is good. It is a government-funded enterprise. Will be more reassuring than ordinary training institutions. The teacher's class is also good, and the knowledge points are easy to understand. It can make abstract content easy to understand and help you understand step by step. When I was in class before, I thought I would feel bored and difficult to persist, but I felt a sense of accomplishment. I thank myself and my teacher for their efforts.