11 titles recommended if you like Isekai Quartet
Life with an Ordinary Guy Who Reincarnated into a Total Fantasy Knockout
Nichijou: My Ordinary Life
SHIMONETA: A Boring World Where the Concept of Dirty Jokes Doesn't Exist
Lucky Star
KONOSUBA - God's blessing on this wonderful world!
Pop Team Epic
Full Metal Panic!
Attack on Titan: Junior High
REBORN!
Tawawa on Monday
The Eminence in Shadow