A Little Love Song (2019)

Both revolves around tennis and has school romance in it which is very cute. In the prince of tennis, it revolves around Lu Xia being very good at tennis and learns team work while in a little love song it revolves around Li Tao being a new player of tennis but is very good at picking up the techniques. Li Tao becomes one of the best players similar to Lu Xia.

Both are sports related dramas where the FL helps the ML with his skills. There is also the same school and romance theme as well. The love triangle is also quite similar where the SML supports the FL and ML even though he likes her. Both are quite light and enjoyable dramas to watch.