whoops I did not read the rules fully-
I'm not one who advertise commissions a lot, and really only post about it occasionally. I think so far all my commissions have been friends/mutuals.
I'm someone who have few commissioners, as stated above, but also because I have a small audience that's hard to engage with, and also keep prices to what I think it's fair for my time and skills.
Unfortunately there's no one method to get certain clients. I think it's a factors of engagement of audience, prices, skills, what you're offering, and advertising.