Recommandations

Both have a Joseon man jumping into the present day and having to understand reality.

-Erased is also an anime that I highly recommend, since it would probably be less rushed than the movie. In Japanese, it is 'Boku Dake Ga Inai Machi'-

-both include male roles who are not the most popular in school
-both include time travel
-both are to save the death of a girl they like
-both have the sam vibes but erased is a bit more in the mystery category.

both are about time traveling and the two main male leads try to prevent events which are related to their loved one.

Both shows are costume dramas, and each have all the elements of a great story. There's tension that keeps you on the edge of your seat, laugh out loud moments of comedy, tragic elements, and a rock-solid romance. They also have chilling/compelling villains that are way too smart to be underestimated.

Tight storytelling, beautiful romance, compelling characters. Your emotions are about to go on a roller-coaster ride.

Both are hilarious takes on the procedural genre, both feature adorably quirky characters, and both have just enough subtext to keep you addicted.

Relationship between the two main lead is similar
The male lead personality is (talking about his rudeness and hidden kindness) quite similar

The way how the protagonist has to take care of the male lead is similar

Gives the same feeling
Tomboyish girl quarrels with the rude man
( might be I'm a bit biassed because both male leads are playing in Goblin)

Both the female leads has to protect their boss's (DBS in the beginning)

Although LNF follows the story of two adults loving after having a child, OMGB follows the story of the child and has similarities with both parents wanting custody. Both gave me similar vibes though, even if OMGB is much less romantic and much more slice-of-life melodrama-y (child had childhood alzheimers).

It's more realistic, real historical based, better acting skills, better politics & wisdom, rich in all types of emotions, 100x better story line than this Song Of Phoenix !

-Female lead gets pregnant
- Secretly born child
-Male lead doesn't remember the female lead
-Story arise when they met again and fall in love

Both sports drama with swimming athletes. Both main leads became friends before lovers. They had great chemistry. Light bubbly easy to watch dramas that give you the same feel-good vibes.

Both include a broken slightly messed up family.

Both have slightly pathetic adults.

Both include an unconventional outsider. A tutor in Kazoku Game and a Housekeeper in The Suspicious Housekeeper.

Both have very good character developement.

(Please note that the suspicious housekeeper is a korean drama)

The series have leading ladies that are not-so slim and both are carieer women that are not afraid to not be not-so-elegant, speak out for themself. They catch their mates cheating on them with other ladies. Both meet afterwards because of an incident a more atractive male towards whom they start developing feelings. Both have obnoxious, but very slim ladies as rivals.