My father did training, before buying his cafe, at Toby's estate in Sydney and found it to be good. In fact he became meticulous about his coffee and obsessed with the cleanliness of his machine which are both important if you want to go into a high end cafe. They also seem to give a good knowledge grind adjustment and milk texturing.
But nothing compares to practice, try and find someone with a commercial machine that you can get on and waste some milk, just so if you get put on the spot when applying for a job you will not be overwhelmed.
Good luck, hospitality is a great skill that will be useful if you ever want to travel too