hi, i think i read more shoujos compared to joseis tbh, but here are some of my fav joseis ! :

• Firefly Wedding
• Moto Konyakusha kara Nigeru Tame Kyuuketsu Hakushaku ni Koibito no Furi wo Onegai shitara, Naze ka Dekiai Mode ni narimashita *(i’m sorry the title is too long haha but i swear this one is SO GOOD!)
• Love Gamble with the Mafia
• Assassin x Cinderella
• ⁠Nijuu to Seijuu
• ⁠Mukuchina Koushaku Reijou to Reitetsuna Koutei
• ⁠The One Within the Villainess
• ⁠My Righteous Older Brother
• ⁠Love of Kill
• ⁠Ayashii Iyashi no Yakumo-san
• ⁠Koigakubo-kun Stole My First Time
• ⁠Honnou Switch
• ⁠Sweet for Sweets and Foreigners

and since you mention umekoppe, here r more of my fav smut joseis haha~
- Yuusha Party kara Seijo wo Sukutta no wa Maou-sama Deshita *(and other overkill/bita works)
- ⁠At This Rate, We Can’t Be Best Friends
- ⁠Yume Kara Samete mo Soba ni Ite
- ⁠Kiss de Fusaide, Bare Naide
- ⁠That Beauty is A Tramp
- ⁠The Obsessed Mage and His Beloved Statue Bride
- ⁠The Villainess and the Demon Knight
- ⁠Gaman shinaide, Hades-sama
- ⁠Marriage with A Strange Tributary God *(same author w above)
- ⁠Nonoka & Ko-san
- ⁠Yandere Koroshi!! Shuuchaku Yaba me no Osananajimi ni "Watashi mo Suki" to Tsutaetara, Lovecome Route ni Shift shimashita
- ⁠Blind Love of a Dark Lawyer: The Most Obsessed and Pure Love Story in the World
- ⁠Dattara Ore ni Horeteshimae
- ⁠Kaede, the Yandere Boyfriend
- ⁠My Broken Vampire *(this is a little <very> messed up but for some reason im kinda liking it…)
- ⁠Dekiai shachō wa watashi dake ni shūchaku-kei Amai doku de okumade torokete
- ⁠My Younger Childhood Friend Likes Me Too Much
**pls check tw for some

hope you’ll find something you enjoy!