Different schools have different ways of teaching and interaction with their students. Some offer training in other then steel too. Some schools have a few different types of classes, say fillet brazing instead of socket sweating instead of welding. Some schools are for longer or shorter number of days/weeks. Some are focused on getting one frame done and others are more about learning the craft/business. Some have lodging easily available, others you're on your own. Some are fancily tooled others not so much. And then theirs the costs and locations that are different.

So maybe a bit about yourself, your goals and current experiences, will help us guide you better. Andy.