I normally share yuri I like, but this time it's one I dropped. The Anemone Feels the Heat felt so boring and tedious. It felt like a couple volumes of content got stretched into 9, with little conflict or interesting developments past the first 10 chapters. I honestly don't get why so many people liked it so much.
That might be hard, I'm a total bottom :3
But if i had to give my top 5, Girl Friends, I Love Amy, and Otherside Picnic would most likely be in them. Qualia the Purple, That Time I Was Blackmailed By the Class's Green Tea Bitch, Watanare, Like, Share & Subscribe, Shimeji Simulation or Mietemasu yo! Aizawa-san might also be in my top 5 depending on my mood.
I guess it's a combination of which yuri I love the most, and what I would recommend the most as the pinnacle of yuri. I would probably also include Bloom into You, The Summer You Were There, Destroy It All and Love Me in Hell, I Want to Love You Till Your Dying Day, Watatabe, Dear Flowers That Bloom In Days of Yore, My Dearest Nemesis, Convenient Semi-Friend, Still Sick, Please Bully Me, Miss Villainess! Mage & Demon Queen, Doughnuts Under a Crescent Moon, and There is No Love Wishing Upon a Star as manga the are less close to my heart, but are still the best of the best.