Postgraduates and doctoral students (or other majors) continue their studies; You can also be a calligraphy teacher; You can also do some other work, such as editing and proofreading in a publishing house, writing and being a reporter with good writing skills; Art galleries, museums, literary and art circles and other units also recruit graduates of this major. As long as it is a liberal arts major, many can choose, not necessarily limited to writing. Of course, you can also be a professional calligrapher who specializes in writing for a living. The above is related to calligraphy major.
Of course, if you look for a job after graduating from college, it is not necessarily limited to calligraphy. You can start your own business or something if you don't look for a job.
Also, you can study for a second degree in university. For example, some of my classmates majoring in calligraphy also got a second degree in Chinese language and literature during their school days. At this time, you can have more choices in finding a job.
Anyway, no matter what major you study, everything is based on what you like. If you like calligraphy, you are willing to pursue further studies in the university. I wish you success ~ ~