Recommendations

Min Ki is an unemployed banker. He now takes over the domestic roles of the house: cooking, cleaning, and watching the baby. In his free time, he watches soap operas and reads romance novels. Meanwhile, his wife Bo Ra works at an English language institute and is having an affair with a former lover.
One day, Min Ki accidentally stumbles upon a key, that belongs to his wife, and is unfamiliar.

Addicted is a story about the spiritual journey of two brothers - as well as a passionate tale of love and desire between a man and a woman. Dae Jin falls into a deep coma at the same time as his brother Ho Jin dies, both due to car accidents. After waking up again, Dae Jin takes on the habits as well as the looks of his worshipped brother. Things start to get totally out of hand after he falls into an addictive relationship with Ho Jin's wife, Eun Soo. She firmly refuses to believe that Ho Jin's soul has transferred into Dae Jin's body until an astonishing revelation causes her to question her faith.

Both are BL; chemistry between the main actors; gang activity; intensivity in every episode; without teen dramas; amazing ost.

Are friends truly trustworthy? Or can those who know your darkest secrets turn out to be your worst enemies due to jealousy and betrayal?
The tragic death of a girl raises suspicions among all of her friends.

Just like Cal It What You Want, War of Y will explore the dark sides of the entertainment industry, especially the BL industry. Both series look at shipping (especially when actors are straight), real relationships that form from working together, and corrupt talent agencies and managers.

Just like Cal It What You Want, War of Y will explore the dark sides of the entertainment industry, especially the BL industry. Both series look at shipping (especially when actors are straight), relationships that form from working together, and corrupt talent agencies and managers.

Both MC's are professional killers and are out for revenge/the protection of the female's in the story line.

Kill it is a bit darker than The killer but you'll enjoy both if you liked either one

Somewhat different but main MC's give off a similar vibe. Both of them train/are killers by nature and are on a revenge plot.

Same vibes, unrelated man gets involved with a girl and ends up needing to use his skills to save her.

Similar plot, MC and a female both contract killers/professional killers.

You'll enjoy both shows if you liked one of them

Both dramas show childhood friends turned into lovers with so many misunderstandings
Both are set in school days and show the students' family backgrounds and past.
Both have cute soundtrack selections
There is a love triangle in each of them
One has a strong unrequited love

Both dramas are set in College days.
Both dramas revolve around friends and classmates hanging out together ( They eat out together, go on trips, fall in love, breakup, etc)
Both have love triangles and unrequited love
Even the soundtracks are somewhat similar and give off the same vibe
The leads have been through hardships and have been raised in unfunctional families

As soon as I watched Money Heist, it reminded me of Pied Piper. Both dramas deal with negotiations but Pied Piper is mainly focused negotiation with people in order to prevent bad things from happening.

Cubic has the same tags & same theme as well. Such as: Mafia, Older man/younger woman, strong female lead.

Both dramas have a similar feel, are light in tone with some darker elements, and focus primarily on mystery/investigation with a slow burn romance between the main couple who solve cases together. The ML actor of HDRA is a supporting character (half of the secondary couple) in MM.