There are lots of different teachers within the Golden Dawn community who are offering courses either online or offline. They are well worth looking at if you cannot join a full temple. Each teacher emphasizes their own practical work and you can learn more from these sorts of workshops than from pages of writing. It is worth jumping into a car and booking a hotel in a strange part of the world to visit. I did a lot of that when I lived in the UK and do run workshops both online and off myself now.