You should do some research into the organization OBOD (Order of Bards, Ovates, and Druids), or BMDO (Black Mountain Druid Order). There are may Groves that offer lessons.
If you're not looking for subscription course, I suggest looking to the covens here on the site. The right one may have articles, and possible even members, who would be able to help you out in your path to discover Druidry.
Ar nDraiocht Fein: A Druid Fellowship is also a good place to go. If you pay the membership fee (which isn't much) you'll have access to the majority of their study materials in pdf format for free. They also have a mentor program that will set you up with a mentor that you can reach over email. Your mentor might also be close enough for you to meet with in person.