You can go to the Youth Palace, where there is training in hard pen calligraphy and brush calligraphy. There are weekend classes and holiday classes, and the cost is several hundred yuan a semester. There are sixteen classes in a semester, each with two hours. After studying for a period of time, you can take exams or participate in some competitions and so on.

The location is just in Jinwan Square, and it is convenient to get out of Jinwan Square Station of Metro Line 3. I wish you success in your study.