11 titles recommended if you like Clockwork Planet
Jack-of-All-Trades, Party of None
Bye Bye, Earth
The Testament of Sister New Devil
Kämpfer
Hybrid x Heart Magias Academy Ataraxia
Dragonar Academy
Unbreakable Machine-Doll
The Seven Deadly Sins: Four Knights of the Apocalypse
Fushigi Yugi: The Mysterious Play
The Asterisk War
Plunderer