Frankly speaking, there are basically no such training courses on the market at present, and they are all ways for old masters to bring new apprentices. I suggest you find some skilled colleagues to contact and consult. In addition, I recommend you two books: One is Design and Implementation of Modern Security Technology, a comprehensive case study, as a technical improvement. There is also a book: Construction Management and Quality Control of Security Engineering, which is in-depth. More than 500,000 projects should read this book. I hope you can cheer hard!