Kelly Venden, Criterion Tactical. Check out the "Training & Competition" section of this forum for his courses. He's a site sponsor and a damn good instructor. I did some handgun training with him, and I highly recommend it.
I took a beginner pistol course that was pretty good through https://www.facebook.com/TheDeadeyeMethod under Mike. You would probably like his more advanced courses which I plan to take this year, they are done at Bullet Hole Shooting Range.
Perusing the threads and will add some upcoming course dates: January 18th, 25th, and 26th in Dripping Springs, Texas. Criterion Tactical presenting Fighting Pistol with low lite/no lite, Fighting Carbine, and introduction to Tactical shotgun.
For info/registration: class@progressivecombatskills.com