Request anyone know any good anime?

Youjo Senki
In a nutshell, evil nazi loli

 

One punch man
akame ga kill
Guilty crown

 

Kyoukai Senjou no Horizon
Black Bullet

 

Mobile suit Gundam Universal Century Series

 

Re:Creators
Re:Zero
Overlord
Grimgar of mist and Ashes

 

There seems to be a lot of series that haven't truly ended or had alternative endings being mentioned but meh it's subjective.

Here are some anime with good endings:
Gosick
Occult Academy
Wild Arms Twilight Venom
Utawarerumono
Tower of Druaga
Valkyria Chronicles

 

Your lie in April is really good but onion ninja was definitely there ;>~<;