Princess Shuden
The translation has been a bit off so I don't fully understand what's gone on. However, I think it's this: A girls family dies, she tries to make ends meet, and eventually dies. In her second life she goes off to marry a marquis. She s a sacrificial princess (in 22 chapters, it hasn't been explained what this means). The romance is a bit rushed and without basis, but it's not bad.
The Young Lady Tames the Male Leads
Girl reincarnates into young noble side character in book, befriends main characters at kindy
Dear My Friend
A girl isekais into a novel through unknown means, into the "friend" of the MC. In the novel, the MC marries and then takes in her friend as a maid, and eventually kills her. So, as the friend, our girl makes her own way.
Your Eternal Lies
So a girl is given a life sentence for murdering someone (she may or may not be innocent) and for having escaped a prison. She 8s trying to win over the guard and has saved a young girl. It's not bad at all but not well researched AT ALL. The male lead is dressed as a WW2 fighter pilot, while ordinary citizens are dressed as 18th century peasants.
Second Life on the Red Carpet
Girl isekais into knight of MC, and accompanies her as she goes on to have her happy ending, only for both her and the MC to wake up 7 years prior the next morning. They both remember and help one another to quell a rebellion they couldn't stop before. The MC (who's a sweet princess) asks our girl to protect a guy who was killed before the rebellion. He's the love interest. It's not bad honestly
Somehow I Raised A Prince
Historical setting, but not isekai. Orphaned girl finds egg that hatches into a dragon that'll become an emperor. It was promising but the dragon is super possessive? He turned into an adult briefly and was kinda gross ngl
My Family is Obsessed with Me
An orphan girl is cruelly trained to use manga, becomes a warrior, and is granted a second life when she dies. She reincarnates into an orphan child with full memories of her past life, and after a bad time in the orphanage, is adopted by a ducal family
Nidome no Isekai Shounen Datta Kare Wa Toshiue Kishi ni nari Dekiai Shitekuru
THIS IS EXCEPTIONALLY GOOD, even if it is basic af. So basically a modern woman isekais into a book, saves a boy, then isekais back into her world. When the goes back, the boys grown up
Emperor's Mask
There are several women living in the rose palace who serve as potential wives for the emperor. The emperor himself wanders the rose palace disguised as the Chamberlain. One day, one of the women in the rose palace is poisoned, and our girl isekais into her body.it is she who captures the heart of the emperor
Melody of the Deadwood