Maji de Watashi ni Koi Shinasai - harem has a yuri sidecouple, pretty explicit, you see em kiss and naked in bed (probably after doing it). They don't get much screentime tho (just about 2 yuri scenes... they appear half way through the anime). I don't know anything about the harem or plot, I just skimmed through it to watch yuri scenes... Worth it! xD
Negima - heram has subtext yuri going on (tho they do kiss in the anime, seen screencaps...), in the manga's ending it says both of them get married making it PRETTY OBVIOUS that it was with each other (cuz subtext...). Never seen the series, I just took a look at that last manga chapter.
Anyways, characters like Kuroko here were the first I yuri characters I saw in anime, well... calling them that feels wrong, they are just joke characters. Probably why it took me a while to get into the genre, I thought it was gonna be nonsense similar to those, was a pretty bad first impression.