I have been a Nikon shooter for almost 20 years. My go to camera body for the studio is Nikon's flagship mirrorless Z9 camera and assorted prime lenses. One of my favorite portrait lenses is the 85mm 1.4.
I also own a Leica Q2 which is wonderful for personal work and travel. My studio strobes are top of the line. The key light is a Broncolor 800 with a Parabolic 122 modifier supplemented with two Profoto B10's. I also own two Phottix Indra 500 strobes as back up.