I would first choose the aperture based on the span of depth of field desired. Let’s assume you want this to be shallow. Start with f/5.6. You can adjust as we proceed.
Let’s do with a two light set-up. This will be a main placed high and off to one side. Next place a fill at about lens height, placed somewhat near the camera.
With the only the fill operational, shoot a series of test shots using the watt-seconds adjustments. Let’s pretend the 750 setting produced a reasonable exposure.
We want the fill to be subordinate to the main. Try a series setting the main a 1000 then 1200, then 1500. Examine this series. Use the ISO setting to tune the exposure.
Your series will display a contrast change. Choose the contrast result that suites your needs.