The well-known ones are arbitrary sand paintings in Sichuan, Zanmin sand paintings in Beijing and Dabao sand paintings in Beijing.
Some small workshops, you can consult if you don't mind teaching you.
At present, the better training institutions only accept face-to-face instruction. Because of the characteristics of sand painting, face-to-face teaching is much faster than learning textbooks.
In other words, you need to go to the training center to study in person.
Another way is to buy textbooks at the place where sand paintings are drawn. Study at home by yourself.
But their textbooks are only one-sided.
I'm not sure about other learning methods.
You have to find the right teacher to learn sand painting. If you really want to learn.
Then please look carefully for the sand paintings in the studio where you want to participate in the training.
Watch more dynamic works, video scenes and the like, and watch less static works.
Choose your favorite style and teacher.
Then decide whether to study or not. Nowadays, many sand painting performers mislead others for profiteering.
Therefore, I hope that sand painting lovers who are interested in learning can choose a good teacher.
Choose a good training institution and be responsible for yourself and the training expenses you pay.