I'm a bit of a BKV enthusiast so I might have a bias, but Saga is in my all time top 3 for comics. Decent humor, feels, Esperanto passed off as an alien language, beautiful and surreal artwork, and a full and colorful universe.
Y is an all time favorite of mine too. The poetry in the story, no matter how blatant like when 355 dies to Alter in a parallel to Alter's family superstition
. Pick up his take on the origin of The Hood if you like good Marvel villains, and Deus Ex Machina if you like political commentary.