Holsters are a personal preference that is hard for me to recommend. As you may know there's a multitude out there. It may help if you narrow your choice down. Do you prefer IWB or OWB? I'm assuming strong side carry. I prefer open bottom with no strap or thumb break.
As to my personal choices, I don't care for ***, MOB, cross draw, etc. Although cross draw has limited applications for me.
IWB- CompTac MTAC, Milt Sparks VM2 and currently some unmarked cheap kydex (Bladetech???) that for $15 used works pretty well. This is not a complete list however.
OWB- I've tried quite a few that worked well. ie; Simply Rugged Sourdough, El Paso Saddlery, Orourke, DeSantis, Galco to name only a few.
I'm not for sure if ***/MOB & cross draw is even allowed in IDPA.