There are a couple of ways to go about it.
Some providers are 'newbie friendly' and will help out new comers to the hobby, look for newbie friendly in ads and it never hurts to ask if its not specified.
Go through screening through
P411.
I know you haven't seen a provider on this board but do you know any hobbyists on here that have been around the block a few times? A few years ago a good friend of mine wanted to get going in the hobby and used me as a reference and was cleared and began his hobby adventure that route.
I know it seems impossible to get started if everyone wants references but if you are up front and ask these girls one of them will help you and get you on your way.
Good luck