Recommendations

Both are about incest and religious believes.

Near a remote Buddhist monastery, a young man falls in love with his sister and gets her pregnant. After a monk finds out, the young man becomes an assistant to a master sculptor, only to proceed to complicate matters with his affairs.

both female leads are "uncaring" of the social norms and they say and do things that seem "weird" to other people.

Both are about incest and the insanity it provokes

The erotic novelist Taeko is writing a morbid story of a family destroyed by incest, murder and abuse. Her assistant, Yuji, sets on a mission to uncover the reality of this story, but the reality might be too much to bear.

both female characters are strong, independent and fashionable, and both male leads are the sweet not jerk kind
plus the directing and the vibes of the dramas feel similar and aesthetic~

The storyline is different though has a similar feeling. Both contain the elements of a bodyguard (though Advance Bravely does not have the friend since childhood part), and a rich main lead.

Married life of both the couple start with on condition/bet. Someone's life is at stake, so one couple marries , the property and love were on the stake other side, the second couple marries. pull and push relation , one love other reject in the end both accept their feelings.

Both about internal politics, money and corruption. Both about underdogs who are trying to find out the truth of their parents' murder, while fighting for justice and the truth. Both involve protagonists who are close to/family members with the antagonist.

The main female lead travels from the future time to the past historic time via technology-virtual reality in order to experience love

The main female lead travels from modern world to the past period time. Plus this drama is fantastic

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!!