11 titles recommended if you like Strike the Blood
The Testament of Sister New Devil
Seraph of the End
Chained Soldier
Aesthetica of a Rogue Hero
Unnamed Memory
Harem in the Labyrinth of Another World
Fate/kaleid liner Prisma Illya
Hybrid x Heart Magias Academy Ataraxia
Date A Live
Our Last Crusade or the Rise of a New World
Umineko: When They Cry