characters feel real, not the imaginary or stereotypical prefect “woman or man”

If I’m interpreting this criterion right, it means you don’t want a character like Usui from Kaichou wa Maid-sama!. I can’t think of a good way to describe these characters. I realised this is just a rephrase, but: they are so flawless, and no such person can exist in real life.

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I think these may fit your definition of “real”:

• My Boyish Girlfriend Is Too Cute - A cute couple and you can guess what the girlfriend is like based on the title. The boyfriend is based too.
• Gal Can’t Be Kind to Otaku!? - Looks like a rare throuple romance.
• Love Bullet - The story follows a group of modern-day cupids. They haven’t been the focus of romance in the manga so far, but let the author cook.
• Managing a Wild Idol - This one is about an idol with serious gap moe and her manager. I think this one may fit the criterion of “real” best.
• I Decided to Fake a Marriage with My Junior to Shut My Parents Up - A very short yuri story at just 3 chapters long.
• Kaguya-sama: Love Is War - You have probably read this, but if not, now is good time to pick this up.
• A Story About a Very Ordinary Couple - A slice-of-life series that follows a very adorable couple doing couple-y things. You may want to read the prequel - A Story About a Man and a Woman and When They Sleep Together, Money Appears Out of Nowhere - first.
• Please Bully Me, Miss Villainess! - A yuri villainess isekai manga. This one is my favourite out of this subgenre.
• Kubo Won’t Let Me Be Invisible - The male protagonist is so unnoticeable that it’s basically a superpower. He gets hard-countered by the female protagonist though.
• Kuno Chiyo The Psychic - The female protag tries her best not to be rizzed by the male protag because of what the future brings if she did.

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Unsure if they fit your criteria - because it’s been a while since I read them- but they are good:

• Beauty and the Beast Girl - A twist on Beauty and the Beast by having the Beauty be blind and the Beast be a lady.
• Sheep Princess in Wolf’s Clothing - A yuri romance between a princess and her female butler.

I’m recommending just the 10/10s that I’ve read, otherwise the list would be too long.

P.S. I noticed there’s a serious lag of yaoi in this list. Too bad.