Games like Horobi Kuchiru Sekai ni Tsuioku no Hanataba wo

If you finished Horobi Kuchiru Sekai ni Tsuioku no Hanataba wo, the closest matches are Harmonia, Robotics;Notes DaSH, From Ivan, Recording the Predestined Time and Intergalactic Ambassador. All 6 share its visual novel genre and are ranked by how closely their themes and modes overlap.