I'm planning to add more and sort this into genre later, sorry about how messy this is. There's some overlap since series fit into multiple genres. Also I think my tastes are generally mainstream (dare I say normie), so for seasoned fans there probably isn't anything shocking here.

Favorites

• Code Geass
  
• Madoka Magica
  
• Steins;gate
  
• Zankyou No Terror
  
• Princess Tutu
  
• Nabari No Ou
  
• Mob Psycho 100
  

Isekai

• Overlord
• Youjo Senki
• Re:ZERO- Starting Life In Another World
• KonoSuba: God's Blessing On This Wonderful World
• Ascendance Of A Bookworm
• Meikyuu Black Company
• Escaflowne

Romance

• Kaguya-sama: Love is War
• Toradora
• Rascal Does Not Dream of Bunny Girl Senpai
• Ouran High School Host Club
• Chuunibyou Demo Koi Ga Shitai (first season only)
• Akagami No Shiroyuki Hime
• Tonari No Kaibutsu-kun
• Horimiya
• Your Lie In April
• Princess Jellyfish

Comedy

• KonoSuba: God's Blessing On This Wonderful World
• Meikyuu Black Company
• Non Non Biyori
• Saint Young Men
• Cell's At Work
• Hataraku Mao-sama
• Ben-To
• Keroro Gunsou (dub)
• Ghost Stories (dub)
• Asobi Asobase
• Maojou de Oyasumi
• One Punch Man
• Hinamatsuri
• The Melancholy Of Haruhi Suzumiya
• Zombieland Saga
• Gabriel Dropout

Action/Shounen

• Fullmetal Alchemist: Brotherhood
• Soul Eater
• Blue Exorcist
• Noragami
• Haikyuu
• Hajime No Ippo
• Promised Neverland (first season only)
• Kakegurui (not sure if it should be in this section)
• Kill La Kill
• Hellsing Ultimate
• Made In Abyss
• One Punch Man
• Parasyte

Mafia/Gang Type Stories

• Bananna Fish
• Baccano
• 91 Days
• Cowboy Bebop (wasn't sure where to put it, and it vaguely fit here)

Idk the genre, just vibes

• Welcome To The NHK
• Kino's Journey (2003)
• Girl's Last Tour
• Shigofumi: Letters From the Departed
• Gunslinger Girls
• Haibane Renmei

Sad, but a different type of sad than the previous category

• Violet Evergarden
• Anohana: The Flower We Saw That Day
• To Your Eternity
• Your Lie In April
• Vivy: Florite Eye's Song

Halloween Vibes

• Hellsing Ultimate
• Little Witch Academia
• Another
• Black Butler (first season only)
• School Live
• Soul Eater
• Ghost Stories (dub)
• Hell Girl
• Dusk Maiden of Amnesia
• Paranoia Agent
• Shadows House (the anime adaptation is pretty good, but it does go anime original at the end)
• Higurashi: When They Cry
• Blue Exorcist
• Angels of Death
• Death Parade

Unsorted

• Akatsuki No Yona
• Wandering Witch: The Journey of Elaina
• Flip Flappers
• Kokoro Connect
• Magical Girl Raising Project
• Heike Monogatari
• Hyouka