If you're looking for manga similar to Irodorimidori, you might like these titles.
Takami Chika dreams of becoming a schoolgirl idol, just like the famous μ's (Muse)! Like they did, she wants to save her own school from closing by starting her own School Idol Club. But... "It's impossible for small-town kids like us to become idols." "Why isn't anyone interested?" "Perhaps they're holding back because they think it's impossible?" Can Chika make her dreams come true?
Green Leaves Entertainment is a tiny production company on the verge of going out of business in Sendai, the biggest city in Japan's northeastern Tohoku region. The agency once managed the careers of magicians, photo idols, fortune-tellers, and other entertainers, but its last remaining client finally quit. In danger of having zero talent (literally), the president Tange hatches an idea of producing an idol group. On the brash president's orders, the dissatisfied manager Matsuda heads out to scout raw talent. Matsuda makes a fateful encounter with a certain girl...