If you're looking for manga similar to Shippuu Windmill!, you might like these titles.
On the first day of high school Nohara Tama - who is just a plain, ordinary girl - gets herself involved in a heated argument between two baseball fans. As a result, Saitama White Cats fan Nishitake Reona and Fukuoka Falcons fan Daiei Haruko drag her to the baseball stadium. How will the fate of Tama - who doesn't know the first thing about baseball - play out!?
Kohane Hatoya, a young woman who loves to be helpful to others. After she moves from middle school to high school, she becomes fascinated with cheerleading, and she starts a cheerleading club at her high school. Joining Kohane in her cheerleading activities is the experienced Hizume and Kohane's childhood friend Uki.