Recommendations

Mafia gets involved with the law;
in Vincenzo it's not that direct, and there are some bright moments

Yeah the grandmas! Three grandmas!
No but really
There are many similarities
Feel good romance dramas, with mature characters leaning on each other and healing each other
Female lead who’s good at her job, leaves it.
Meets a guy from the county side who is skilled at many things.
At first both dramas don’t have a clear story direction.
MHOJD was better written, and had more of an existing story line than HCCC.

Both are supernatural drama. And both contain royal politics and same type of romance. The Main lead has supernatural power and wants to take revenge. Villains are also supernatural beings.

the plot is basically the same but this drama is more concentrated more on friendship and all that family strength blah blah. this is drama is like the future version of racket boys but i doubt whether their personality are the same. its an amazing drama, trust me on this!

they were both filmed in the same way and have the same characteristics (probably because most jdramas are filmed this way). they both have the idea of a family/couple moving into a new a place which causes them a lot of trouble (by trouble i mean murder). even main posters are pretty much the same. they both also show many people in creepy ways. like they have characters who are different when you see them and when you walk away (if you get what i mean). plus, some characters have weird habits and objects so that leads to almost everyone becoming suspects.

the only difference is that anata no ban desu shows a whole block of flats and all the mysterious things that happen to each one and character/s living in them whilst shinhannin flag focuses on one family and the murders surrounding them.

also update : shota and nana (the main two from anata no ban desu) have a small guest appearance in episode 8 of shinhannin flag :)

Undercover
Crime
Strong female lead
Romance / partner bond
Mystery
Justice

Private lives is one of my favorite Netflix dramas. Especially if you love the action thriller romance.

Both dramas have a female lead who is focused on her career. Hae Ryung works at the palace, and so (eventually) does Cheon Gi. Both female leads fall for a man who at first glance seems more soft/gentle, while the female lead is more strong willed and ambitious. (Though, in Lovers of the Red Sky, Ha Ram isn't really as soft and gentle as he may seem.) And both dramas start out with more focus on the female lead's professional aspirations and on the blossoming romance before transitioning to a greater focus on political intrigue and more angst.

That said, the tone of Rookie Historian Goo Hae Ryung is more comedic and down to earth than the spooky vibe of Lovers of the Red Sky.

Similarities:
- A strong female lead in an action packed movie taking bloody revenge without minding her own wellbeing.
- Lots of fighting blood and violence

Differences:
- human trafficking and abduction with sexual abuse of the abduckted (read the taggs before watching)
- FL trying to safe the abducted younger sister
- no law enforcement authories involved

Both are short south korean 2021 about a romance between two guys dramas/series. Centers around the culinary art and/or food.

Both are Strongberry/Matchbox productions focusing on a same gender romance. Theyre both about high school graduates and very sweet and cute! They also came out around the same time and can be watched on youtube for free.

Same kind of calmness and tranquility
Male and Female leads leaning on each other through hardships.
Healing, precious and sincere,
nicely written and executed.
Both were MBC weekend dramas that aired in the same year... hmm

Goblin is a more mature, much darker series in the way it tells Kim Shin's origin story and fate. There is a lot more slapstick comedy in the first few episodes of MRIAG that may deter someone who's looking for a more mature series, like Goblin, but I'd suggest sticking through it for a few episodes as the FL in MRIAG matures a bit and dies down on the excessive humor. I really enjoyed both series. Goblin's OST is *leagues* better (I'm still listening to it on repeat) as is the overall story, which I found had more depth and bittersweet storylines that made me feel more engaged. That said, I really really liked Gumiho as well, and despite how beautiful Goblin is, Gumiho had a much stronger plot/antagonist and I thought the ideas of fate and love had wonderful tie-ins to both shows.

Both shows about female leads who were once successful in their field of work but suddenly a psychological state they fall in make them feel uneasy and in perpetual depression.
The female leads have problems with their husbands who are leaning to their first love.
The female leads were pregnant and had miscarriage which make difficult form them to return being hardworking.
Both dramas have in common mystery and ambiguous sides in the sequence of events.

Another action-filled show that illustrates how two characters on the opposits of the law, Cop<->Villain find common grounds and a little bit of romance.

Same with the 2003 version: The main similarity is the on/off mode of our main character and their need to hide their insecurities and personality traits they think that contrast their "perfect" image(if you ask me everyone shows a different face depending on where they are anyway) . Another similarity is the sweet/demanding persona of the mls. Also older woman/younger man trope happens in both.