• Hunter x Hunter
• Revolutionary Girl Utena
• Serial Experiments Lain
• Higurashi no Naku Koro Ni (OG series)
• Mawaru Penguindrum
• 3-gatsu no Lion
• Hourou Musuko
• Puella Magi Madoka Magica
• Cardcaptor Sakura
• Noragami
• Death Parade
• The Promised Neverland (S1)

sub-category, anime movies:

• Perfect Blue
• Puella Magi Madoka Magica: Rebellion
• Castle in the Sky
• Spirited Away
• Howl's Moving Castle

and, im adding this here because i don't watch enough cartoons to warrant a list:

• Avatar: The Last Airbender