Where are you from? Putting the information you need to recruit people on the talent network in your city is the best way, I think. You can also put it on some schools or websites dedicated to part-time jobs for graduates or graduated college students, because after all, there are many majors in CAD drawing. It's easy to recruit people this way.
Or you can put it directly on Witkey.com, there are many experts here~
Haha, I work in decoration, and I am very skilled in CAD. I’m looking for a part-time job, haha