Recommendations

Marriage swap stories where female leads give me similar vibes. They are fundamentally different because of the plot and their character backgrounds, but they feel subtly reminiscent of each other. If you like one, you may like the other.

FL is a time-traveler in [1] "Qian Sui Qi Meng Yun Wei Yang" with a reborn sister, while [2] "Huan Qin" features the double rebirth of both sister.

In both stories, the marriage swap is initiated by the sister, while the FL passively accepts. Both female leads have a "take life as it comes" attitude. They are clear-headed and calm characters, though [1] is slightly spunkier as she is a modern soul. Their kind nature is also evident through their behavior and the genuine treatment toward those they care for.

They focused on living well and only deal with their sister when necessary. They don't really go out of their way to ruin their sister's life or enact revenge.

Almost eerie atmosphere ,along with family issues plot and an abusive female lead and underlying tones of child abuse, though a little different in terms of storyline , both contain very similar style of cinematography and storytelling .

unlucky bae: lucky guy accidentally curses his actual enemy's friend with bad luck and stays around him hoping his good luck will rub off on him to atone

mr unlucky: unlucky guy selfishly uses the lucky guy's crush on him as a way to steal the lucky guy's good luck

similarities
- bl
- both main characters find themselves unexpectedly falling for the love interest in the proximity they had to be in the exchange luck.
- both are comedies

FL becomes a villain due to trauma/abuse. Both FLs manipulate and use people, and while they're ruthless, you also can't help but somehow root for them or sympathize with them. Both dramas also have an ML that's taking them down or planning to do so. And both FLs in the drama go to poor-to-rich and climb to power selfishly.

FL is a villain/becomes a villain to seek power. Ruthlessly ambitious, kills anyone who gets in her way, and manipulates people. There's also a revenge plot in both dramas.

FL is a villain/becomes a villain to seek power. Ruthlessly ambitious, kills anyone who gets in her way, and manipulates people. Both were also adapted from a webtoon.

Although the plots are quite different, I think the comedic and slice-of-life tone is similar in both.

Both series have large ensemble casts, both feature Kim Seul Gi in iconic roles, both have FLs who are afraid to open up to the world, both introduce the ML into the FL's life like a whirlwind, turning it upside down and breaking free from routine, both feature the FL's intimate reflections in voice-over, and both series show FLs correcting the ML's spelling mistakes :) Both are very endearing series that leave you with the feeling of a warm hug.
If Flower Boy Next Door is ideal for winter, Spirit Fingers is ideal for spring and summer.

-Y series
-Both are from gmmtv
-Office romance
-Grumpy/sunshine
-LGBTQ series
-Both are from Thailand

Another bl series from KristSingto. The series Write You Again is about Nine, the protagonist who suffers from long term Amnesia, he returns home to see if he can remember and in chances he meets Singto's character where it seems they have a history together and the relationship is unclear what it was in the past as Nine wants to remember but Singto's character wants to forget.

Feng Miao Jun, a princess of the fallen Anxia Kingdom, crosses paths with Yun Ya, a cruel master from Wei. Despite initial distrust, their fates intertwine. Together with Master Mo Ti Zhun and Saintess Han Yue, they become close allies in their battle against the Heavenly Demons. Through trials, love, and mutual support, they grow into powerful beings capable of facing all challenges.

The themes are quite similar in both cases, the killer is inspired by a comic book and the author is the prime suspect.

If you liked the chemistry of deanmoth in you maniac portrayed by WilliamEst, you may check other their other series ThamePo: A heart that skips a beat. Their chemistry is top notch, won't disappoint. They're totally opposite genre from each other.

The plot is quite similar but this one has a happy ending.
Similar parts are especially the funeral at the begining, the way FL gets info the ML's family, her relatives and their story. This plot is perhaps a little less complicated.

Righteousness, vengeance, self-sacrifice, patience, long term plays, absolute power corrupts absolutely, strong FL, female-centered.

Same time period. Both have involved plots with mystery and revenge. Business and learning the trade is an integral part of both dramas. Impressive casts.