Recommendations

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.

Couple dating each other from early teens.
Become exes and met several years later.
Both are rom-com

•Both dramas centers on revenge about a mother whose child was killed
•Makjang
•villains that gives you blood pressure
•High class society

Both involve a fictional character coming to life involving crime and investigation.

Both shows have fictional events from an online book/manga coming into play in the real world

Both dramas Involve students who become involved in acting and end up playing the main leads. They are also forced to cohabitate in the same dorm.

The Love never sets covers more intense themes and trauma.

Both dramas rely heavily on the "fake relationship" or "fake identity" trope within a workplace romantic comedy setting to drive the main plot and explore the growing feelings between the leads, dealing with many hilarious misunderstandings along the way.

Both of them are GMMTV's Office Romantic-Comedy BLs with CEO-Employee relationship trope. Both dramas are adapted from a novel.