While it's not the same as formal training, by any means, some of the "practical" pistol sports can help competitors build useful skills.
In addition, there is a staggering amount of useful information available in the form of videos and television programs.
I am not
suggesting that any of these things are actual substitutes for formal training, but they can help you understand what sort of things you might need to learn, and where you might be able to learn them. They can even help you develop some very basic building blocks that will help you maximize the value of any training you do receive.
Here's one example of a training video series.