If you don't have any foundation, but you really like it and are interested in practicing, you can first look at the enlarged version of Zhao Ti's lower case Biography of Jimo and Tao Te Ching, so that the strokes and structure in lower case are clearer and easier for beginners to master!
In addition, if it is just a beginner's calligraphy practice, the four masters and the European style are the easiest to start with, as well as Yu Shinan's Confucius Temple Monument, and the structure of official script is easier to master than regular script!
The above is my experience, you can look at them all and make a choice according to your own foundation and interests!