Metal Fighter Miku, Idol Bouei-tai Hummingbird Recommendations
Both are mid-90s series about a group of girls (presumably sisters) who pioneer their way through new fields in society to reach the top and achieve their dreams. Cute side characters are sprinkled throughout along with a decent dose of silly and serious moments. Catchy J-pop songs, group dynamics about how to work as a team, discovering hidden secrets about the dark side of their work, and the influence of an outsider are prominent features in both series. They also have similar animation styles and character designs.