Comp-Tac Infidel is nice for quick trips. Milt Sparks VM2 is very comfy but the wait times are long. Crossbreed and similar kydex/leather holsters are comfy too but they're geared more towards larger guns, not pocket pistols (same with the VM2). PJ Holster is the best value in my opinion. Raven Concealment will be coming out with a Vanguard 2 for the Shield soon so if you like AIWB and concealment is the #1 priority, you might want to look into that. Vandalia (I think that's her name) did a review of the Shield VG2 prototype on YouTube. I hope they make one for the other M&Ps soon. My 45c needs one ASAP.