If you want to connect with your guides and intuition, I suggest checking out Slade Roberson's Automatic Intuitive Response classes. You can get them here:
Classes & Audio Recordings | Shift Your Spirits
You may also want to ask yourself, what is it you ultimately want to gain from these courses? For example, do you want to learn how to use herbal medicines, or do you want to be a professional opera singer?
Instead of asking your guides to bring you a 'certified course', which may or may not be the best way for you to achieve your goals, why not open it up a little and tell your guides, "Hey team, I'd like to be able to sing opera professionally/use music to bring joy in others' lives. Please send me a sign if this is in alignment with my life purpose, and if it is then please bring into my life the resources and circumstances to make this possible." (Slade's post,
Don't Ask Your Spirit Guides may be helpful here)
Don't limit yourself to a particular 'certified course', don't block the flow of spirit into your life by forcing it to go through a bottleneck like that. Maybe you could bump into a few people on the street who could offer to train you, or you could win a free trip to New Zealand and by chance meet the director of a school there who offers you a free scholarship to the exact kind of course you'd like to take.
Tell your guides what you want, then look out for the signs, and be open to the possibilities.