Kind of depends on what you're into; they can range all over the place, but you might start by taking a look through here.
Unfortunately, some of my personal favorites have been dropped, abandoned, licensed, or cancelled. :-(
Blue Drop was one of the series that first introduced me to yuri. Might not be for everyone; there is a definite "squick" factor to some chapters. If you do like it, you'll find a couple others in the same universe on the author's page.
Tandem Lover is sort of old-school mecha mixed with yuri romance. Short but cute.
Mondlicht* and Marriage Black are two that I don't have the clearest memory of but recall enjoying.
* I meant Vampire After the Doomsday Got them confused with each other.
Damn, that gives me a great idea for NaNoWriMo, too! Wonder if I have enough time left to pull it off....
last edited at Nov 10, 2020 5:36PM