Games like Kuon no Kizuna

If you finished Kuon no Kizuna, the closest matches are Cosplaying in Costalia: The Tororo Sisters!, Princess Debut, Chiqing Meimei Shaxue de Xiongkong Riji, Project Sekai: Ayakashi Yokochou no Natsuyasumi and Nandao Ni Shi Gal Gaoshou. All 7 share its visual novel genre and are ranked by how closely their themes and modes overlap.