It's hypothetical - looking at EMRA, Calgary, and/or a few south of the border, since I have friends and family there. It all depends on my schedule and what's offered. I don't have a ton of free time and I'd like to start off by trying out a few novice races, depending on a few other things coming together, as well.
An example of a U.S. school is Keigwin's @ the track who offer a New Racer School that culminates in certification for American Federation of Motorcyclists (AFM) racing, a California club. I've also looked at a number of others, such as Chris Peris' school, Cal Superbike, and a few others - local to southern and central CA, Nevada, and western AZ.