Unfortunately, it's a lot of being lucky. Especially rn, a lot of people cant afford little luxuries like comms.
All the commission work I've gotten so far has been from members of communities I've been involved in, which I've been interacted with for a while before they've bought something from me. Which isn't really a fast or easy way to get comms, much less consistently.
Of course, having a social media presence can help but its also a huge time sink and is prone to attracting scammers, so you have to be mindful.
I wish I had better advice, but its really hit or miss in this business. Wishing you the best of luck!