I have many teachers' articles about how to contact editing institutions to publish papers. Stop talking about intermediaries, my Lord.
First determine what magazine your article is suitable for. If the author of your article asks you to go to HowNet, then go to HowNet. There are also the phone numbers of magazines on the Internet. After confirming the magazine, go to the General Administration of Press and Publication to check the magazine. Magazine publications can be found in the General Administration of Press and Publication. You can look at the copyright page of the magazine There will be the name of the magazine editor on the copyright page, and there will be no name of the intermediary agent on the copyright page.