One of the best is 'Citrus'. It tells the story of two step - sisters, Yuzu and Mei, who have a complex relationship that evolves from confusion and unease to something deeper and more affectionate. The art style is very appealing and it does a great job of exploring the emotions involved in a yuri relationship.
There's this fanfic called 'Star Wars: Female Bonds'. It delves deep into the emotional and romantic connections between female characters. The author does an amazing job of creating a believable and engaging story within the Star Wars setting, with lots of sweet and tender moments between the characters.
There's also 'Yuri's Unspoken Feelings'. In this fanfiction, the author does an amazing job of portraying the internal struggles of Yuri while developing the connection with the reader. It's a story that really makes you feel the emotions.
Well, yuri in manga basically means stories centered around female-female romantic connections. It can show different aspects of these relationships, like emotional struggles, sweet moments, and sometimes even physical expressions of love.