History bloggers generally participate in some historical programs, such as lecture rooms, cultural China and so on; If you want to know more, you can go to a forum like Tianya Boiling History, where there are many experts, many of whom have published paper books.
If you want to go deeper, read books written by experts, such as Qian Mu and Lv Simian. It's a little difficult to understand, but it's still very deep. Deep bloggers will read history books directly.