I also think that I've tried them all, (even the Galco AMT wallet holsters that the ATF later "banned"
)
Currently the simplest leather "slide" holster, not the official yaqui slide design, but the basic two pieces of leather sewn with a metal belt retention clip is what keeps my Browning Hi-Power in the small of my back. Yes there are downsides to that mode of carry, but hey, slide the thing around to whatever tactically correct mode works for you.
I used to use a larger left handed holster, which when put in the small of my back, puts the grip at just the right angle for a right handed draw. (I'm right handed). Just became too much hassle, the metal belt clip is easy on & off. The point of mentioning that is to get creative if need be.
Any holster is better than none at all, and even having something in an ankle holster is better than leaving your weapon at home in the sock drawer, but I digress.
I'll usually just put the extra mag loose in my left front pocket, with nothing else i.e. loose change, swiss army knife, etc. Gives me a total of 29 rounds.
I feel much better with that, than a J-frame and a speed loader, (which I also used to carry)