11 titles recommended if you like Gate
Akame ga Kill!
Saga of Tanya the Evil
Tougen Anki
TSUKIMICHI -Moonlit Fantasy-
The Rising of the Shield Hero
Claymore
Seirei Gensouki: Spirit Chronicles
Re:ZERO -Starting Life in Another World-
Fairy Gone
My Status as an Assassin Obviously Exceeds the Hero's
New Saga