Lately, I’m using a Mitch Rosen El Raton or a High Noon Pocket Grabber - more because of how they specifically fit in the pants I wear for work. For years prior I had excellent results from an Alessi One Piece, a Galco Pocket Horsehide, or an Alabama Pocket. Even the Don Hume copy of the PCS works great. It really all depends on the exact pants or shorts that you’re wearing. I always wanted to try the Kramer but I never got around to it.
I’ve owned the Mika and one of the Desantis softies, but I would not recommend either of them. For me, they do not offer enough stiffness to help with retention. When seated and wearing shorts, I’ve had revolvers fall out of my pocket/holster and onto the floor with both of them. That’s a no bueno. Leather, horsehide or kydex all grip the cylinder just enough to keep everything in place.