As you note, there are a bazillion holster makers out there. Very few of them make a really crappy holster....
Maybe I'm just picky, but IMO, the vast majority of the holsters on the market are actually pretty crappy. Yeah, it's easy enough to find holsters that will hold the gun well (while still real easy to find those that don't). But holding the gun well while allowing reliably quick access and providing good concealment and comfort - not so much.
Milt Sparks is still my go-to. I also like Galco and Desantis leather. I've tried a lot of plastic holsters and still haven't found one - other than the one I made myself - that makes the grade.
