I recommend a University partnership which includes the AMI Diploma. A number of AMI Training Centres now offer such partnerships, some with distance learning options for the advanced degree. Each has unique features, creating a range of choices to match a range of student needs and goals. 
A list of such programmes in the United States can be found at https://buff.ly/33qIwl5. In Europe, you can explore the programme at University College of Southeast Norway in Borre. Or visit https://buff.ly/2rzGCBg to learn about the programme at University of Vic (Spain).