I have quite a few revolvers that are capable of shooting the 9MM Parabellum cartridge.
Five of them are J-frames. These are setup for 38Super or 356TSW though they can all chamber and shot 9MM Parabellum
One is a 3" 547
But the most fun (and accurate) is my 5" 627 Pinto
A second cylinder for this revolver has been chambered for 9x23 Winchester.
With that second cylinder it is capable of safely chambering and firing 9x23 Winchester. 38ACP, 38Super, 356TSW, 9x21, 9MM Parabellum, 380ACP and a few others that do not come to mind at the moment.
Since you want something that points like your model 19, why not get a second cylinder and have Mark at Pinnacle convert it to 9MM for you?
If you are looking to buy a second firearm, a 3" 686 would make a good host for the 9MM family of cartridges.
If you absolutely must have something factory original then you are looking at a used 3" 940 or a used 3" 547 both of which would have fixed sights or the new 2 1/2" 986 which would have adjustable sights