Canon: Mari/Akko (Girlfriends), Kase/Yamada (Asagao to kase-san), Yuzu/Mei (Citrus), Qiu Tong/Sun Jing (Tamen De Gushi..even tho it's soooo slow ;-;)
Not canon: Both the Nanas from Nana. I know it will never happen tho.
Can't choose one since I'm too indecisive. :P
I have so many:
Qiu Tong and Sun Jing - Tamen de gushi
Sunati and Austen - Alays human
Kase and Yamada - Asagao to Kase san
Mel and Lynn - Pulse
Yuzu and Mei - citrus
Lynn X Mel from Pulse.
( Have you read this?) you should read this , it is worth.
Yuzu X Mei from Citrus
there are two couple from what does fox say?
1) Seju X killer waitress( I can't remeber her name) whom Seju's brother ordered waitress to kill Seju.
2) Sumin X Sungji
Qiu Tong XSun Jing from Tamen de gushi (they are so cute as well)
That's all for me . If there is new yuri manga , I will write my favourite yuri ships...
Not sure if someone already had asked this, sorry if it repeats. Currently, mine is Seju x Namei from "What does the fox say"! ヾ(☆▽☆)/