My G23, same platform as the G19, carries exceptionally well in my
Comp-Tac MTAC and/or CTAC (IWB). I'm currently looking for a quality, high riding, OWB holster. My regular OWB (Galco) rides just low enough to be exposed more often than I like.
A good holster/belt will hold your G19 close and you'll fall in love with the gun and rig as a EDC.