Generally speaking, there are regular script, seal script and official script for beginners to choose from. Regular script and official script are recommended here. Of course, official script is also a good introductory script. After you have determined the scripts to study, you can learn some artists and their works of art from these scripts.
For example, if you like seal script, you can find out how many seal script calligraphers there are from Qin and Han Dynasties to Qing Dynasty. Look at all their works of art and find out which calligrapher you like.
People who like regular script will have more choices, such as Ou Yangxun, Yan Zhenqing, Liu Gongquan and Zhao Mengfu, among the four regular script writers, which are all commonplace topics. Some of their works are good, while others are not suitable for beginners, such as Zhao Mengfu. Generally speaking, beginners are not suitable for learning Zhao Ti from the beginning. Yan Zhenqing's writings in his later years are not suitable for beginners to copy. In addition, the calligraphy of the other two artists, Ou Yangxun and Yan Zhenqing, and the works of art in each period are more suitable for learning and copying, which is no problem.
Besides these four calligraphers, there are other regular script calligraphers, such as Chu Suiliang, whose calligraphy is also very good. Generally speaking, the regular script exhibition flourished in the Tang Dynasty, but apart from the Tang Dynasty, the regular script calligraphy in other dynasties also developed greatly. For example, during the Wei and Jin Dynasties, Wang Xizhi's Xiao Zhuan was also worth learning.