A curated list of stuff I've enjoyed:

Made in Abyss

Elfen Lied

Houseki no Kuni

Full Metal Alchemist: Brotherhood (dubbed)

Break Blade

Darker Than Black (dubbed)

Kara no Kyoukai

Koi to Uso

Coyboy Beebop

Ergo Proxy (dubbed)

Code Geass

Bakemonogatari

Fune wo Amu

Mushishi 2014 and 2006

Puella Magi Madoka Magica

Spice and Wolf

Additional note: Bakemonogatari has been removed from Prime streaming. As of now, I know of no legal way to stream episodes 13-15 (or 1-12 in decent quality) for US residents.

Final note: fuck Aniplex.