Don't know if you can - or would like to - travel, but, a course you might consider is called Essentials of Diving, and is given at 5thD-X (LINK) in Monterey, CA. Great place to dive, and a course that sounds to me like a good introduction to the basic skills of DIR for someone with less than 50 dives.
I have not taken this class, but it's just another option.
I have not taken this class, but it's just another option.