When I'm writing, I like to be hit in the face. By air, I mean. (If I liked to be hit in the face any other way, I'd try to find a job like when I worked on MacGyver. The three worst weeks of my life as a TV writer.)
Anyway, I like a little breeze coming at me…not enough to ruffle papers or even my hair but just enough to keep the atmosphere moving. This is probably not unrelated to the fact that I have Sleep Apnea and must sleep with a device clamped onto my nose that forces air into it all night. I tend not to breathe normally when prone so I require a bit of an assist at night, and there's a teensy bit of the same problem when I'm perpendicular.
So as I sit here at my computer, I usually have a small electric fan hurling oxygen my way. For years, I had an adequate fan there but I recently replaced it with a real good one, the Ozeri Brezza III Dual Oscillating 10" High Velocity Desk and Table Fan. It's pretty quiet, it has plenty of different speeds and it has a nifty little remote control so I can turn it off or down when I'm on the phone and don't want the party on the other end to think I'm in a wind tunnel. The remote also lets you move the air flow from side to side or up and down so you can point it exactly where you want it.
I did not check out every possible option; just bought this one and decided I couldn't have done better. There may be others just as good or cheaper but I thought I'd tell you of my happiness with it. If you want to check it out, here's an Amazon link. It's $43, air not included.