Signed up for a woodworking class at MASW (Marc Adams School of Woodworking). I go to a class about once every 2 years. They teach all sorts of things, not just woodworking...including stained glass, working with leather, making new furniture look antique, classes on paint/finishing including "wash" painting, making copper patina, and much more. Their facility is big enough that they offer 4 classes at a time, each on a different subject. They bring in instructors from all over the world, and get the best in the business...many of them are considered authorities and write books, are commissioned by Congress, used for expert testimony, and so on. Most classes are a week long, but they do offer some weekend classes. It's a great place to learn.
I stick with the woodworking stuff. This year (May) I'm taking one on "Detailing your projects" using things like banding and inlays. It's a week-long class. Typical week-long classes cost about $950, and then there are always a few tools you have to buy...so I estimate about $1,400 that I "blew" on that class.
https://www.marcadams.com/