I haven't been on this site for a while so excuse the late reply date.
I usually bundle up the "stalks" and tie them together with twine and hang the twine from a high rafter in the shed. (I screw a srew into the rafter and tie a loop in the higher end of the twine and hook it on the screw.
Then the herb hangs upside down which I understand may help keep the essentials in the leaves. not sure about that but, my shed is very dry inside and within a couple of weeks, anytime of the year, things dry out well there.
I don't understand why any kind of fan is necessary unless you are in a really constantly humid area and even then cutting will dry within a month, imo