Games like Amapani!

If you finished Amapani!, the closest matches are Touhou Luna Nights, Gensou Skydrift, Touhou Hyouibana: Antinomy of Common Flowers, Touhou: Scarlet Curiosity and Touhou Makuka Sai: Fantastic Danmaku Festival. All 8 share its adventure genre and are ranked by how closely their themes and modes overlap.