Recommendations

Weir is the male lead and plays a gangster who bullies and eventually marries the female lead. The overly kind female lead is TSTL, and she also has an equally stupid parent who negatively affects her life. The plot is full of cliches and frustration (for the viewers) but somehow manages to have a happy ending.

The comedic timing and awkward moments are very similar. Reply 1988 has the goat noises, while Prison Playbook has a soft whistle track playing whenever there's an awkward moment; you could interchange those 2 sounds and get a similar feeling.
Also some of the characters are very similar such as Taek and Je-Hyeok. Both are like prodigies and very popular (Baduk and baseball) but they aren't ignorant of the ways of the world and rely on others to pull them along.

My princess kept reminding me of pasta while I was watching it. Then I learned that they were done by the same director.
If you want a similar romance drama with the same lovable vibe, and a slowly progressing romance, with good acting cast…
They even have similar music.
Both are very addicting after the first episode.

Both are light politics dramas with some really good laugh-out-loud comedy. They are both fun if you don’t like serious and heavy politics.
All About My Romance is... well ... about romance, and My Fellow Citizens has little only.

Both involve the main character who travels to an alternate world where the main character's situation is different in each world

Both dramas have ML with superpower (in Memorist - ML can look into the memories of whoever he touches, in The Game: Towards Zero - ML can see the moments before someones death when he looks into their eyes)
Both dramas FL is a detective / part of the police.
Both drama have FL suspect ML as being accomplice to crimes.
If you liked one, you will surely like the other!!

The story of two sisters in post-war Japan. One is a geisha and the other works for the tourist board.

-both drama the female lead male friends are jealous of the female and the male leads
-both male leads are smart and help the female lead with studies
-both female lead are jealous over a girl who is smarter than them and went overseas with the male lead
-both dramas include romance.school life

-Both female lead is aware of themselves
-both lead protect on another
-both drama involves comic
-both drama has happy ending
-both dramas in the middle of the story was sad

Shinnosuke is introduced to Shizu as a prospective wife, but he falls in love with her widowed sister Oyu.

Two geisha sisters lead a hard life in the Gion district of Kyoto. After one of them feels obliged to support a bankrupt businessman, the other sister sets up various schemes to get rid of him.

If you like Xia Zhi Guang, Zhou Lei, Yan Xu Jia or Peng Chu Yue, you can't skip the 'X-Fire' program, which was their debut on tv and thanks to it they became members of XNine.

the story of the main couple give a similar vibe where the wife is very stubborn and fierce and the husband very protective of the wife...both show the sweet bickering of the couples

the period setting is quite similar and the bickering of husband and wife in both drama give the same vibe... both show how the couple support each other in fighting villain

I know these are totally different genre drama and storyline, but:

+ ML are oddly cute with his antics and sarcatic words, while the FL is kind and brave. they are kinda similiar in a different way tho!
+ The relationship between lead is strangely comedic yet romantic.
+ PETS, drama that has pets in the storyline always convice me.
+ Warm friendship. I love the girls friendship in both dramas.

Anyway, those two are my faves ^^