1, you can do targeted advertising for precision marketing. There are many platforms to do at present. Now, as long as you are genuine, all platforms have advertisements in CPC mode, and the click price is low and the effect is good. We have mastered a lot of advertising resources.
2, you can also use qq group mail to promote. Add a Q group and send a group email. It's very convenient to send emails with qq. Just click Send, and all members in the group will receive your letter.