A - Attack on Titan
N - Neon Genesis Evangelion
I - In This Corner of the World (I don’t even like this it’s just the only one I’ve seen beginning with I)
M - Madoka Magica
E - Eighty Six
A - Arpeggio of Blue Steel
N - Naruto
I - Is It Wrong to Try to Pick Up Girls in a Dungeon?
M - Monogatari series
E - Evangelion: 1.0 You Are (Not) Alone
A place further than the universe
Nichijou
I've Been Killing Slimes for 300 Years and Maxed Out My Level (literally the only one with an I, still great tho)
My teen romantic comedy snafu (loads that are on par)
Eighty Six
A - Akame ga Kill
N - Nisekoi
I - Is It Wrong to Try to Pick Up Girls in a Dungeon?
M - Monogatari Series Second Season
E - Eromanga Sensei (only anime i have seen that begins with E)
A - Attack on Titan
N - Natsume's Book of Friends
I - I Want to Eat Your Pancreas
M - March Comes in Like a Lion
E - Evangelion: 2.0 You Can (Not) Advance
A - Angel Beats!
N - Naruto: Shippuuden
I - Ishuzoku Reviewers (My only "I" letter)
M - Monogatari (As a whole series)
E - Enen no Shouboutai (Haven't watched yet, but i have no "E" in my list :C)
In terms of enjoyment:
A- Amagi Brilliant Park
N- Nogizaka Haruka no Himitsu: Finale
I- Inou-Battle wa Nichijou-kei no Naka de
M- Mondaiji-tachi ga Isekai kara Kuru Sou Desu yo?
E- Escha & Logy no Atelier: Tasogare no Sora no Renkinjutsushi
A - Attack on Titan
N - Natume’s Book of Friends
I - Is This A Zombie?
M - March Comes in Like a Lion
….
A - ACCA: 13 Territory Inspection Dept.
Y - Yuri on Ice