Recommendations

Closer to you is very similar to Somehow 18 just Closer to you is in chinese but somehow 18 is in korean.
Both female lead lean against the bus stop poles while listening to music,Both male lead is a outcast in school and both traveled back in time to save the female lead. Even the starting of Somehow 18 the scene is the same as Closer to you "ending".
Both female lead personalities is almost the same too and the way how they introduce themselves is so similar!!!

Both involve office romance between a girl and three or more men who are vying for her affection in comedic and sweet ways. Feel good, warm, happy dramas that you can watch over and over again

Both are love stories between an older male professor and a younger woman. Her Granddaughter is much calmer than Papakatsu though (if that makes sense...?)

Eccentric Male Lead, Romantic Comedy Done Right. It has the same vibes how the relationship of the leads improve and conquer for them to have a happy ending.

A modern day remake of the original 2008 Taiwanese drama, Fated to Love You. It will follow a similar story line of a plain, average girl, who accidentally sleeps with the wrong man and becomes pregnant. The man, a big CEO of a large company, who was planning to propose to his longtime girlfriend (but gets stood up) is then forced to get married with the girl he accidentally impregnates and thus begins their long road to eventually realizing that they are each other's destiny.

A similar setup for the plot! A woman from the past with a tragic backstory who is immortal/dead must grant wishes/put people at ease in order to fulfill her duty and pass on peacefully. She does it with the help of the main male lead who gets thrown into it all. She is tough, surly, and just SO done. Pop-up bar seems to be a little bit more comedic than hotel so far.

Both the lead main roles are about a fashion designer that has found themselves in big trouble. The storyline is also a little similar, however, the plot is completely different. I think "love designer" is a good binge-worthy drama to watch during quartine.

both ml have a gaming company and the plot revolves around game development a lot
both have pre good chemistry

plus xing zhaolin looks kind of like yang yang ahahhaah

When I think about ghosts and mystic things, the first drama that comes to my mind is A Korean Odyssey. Both of them deals with a strong female lead and mystical events with funny scenes and great characters.

both are two cute romantic minidramas. In both there is a couple with an older female and a younger male (although in Love Playlist said couple doesnt have any real screentime in season 1 but the following ones). They also talk about unrequited love for abit and just generally give me a similar feel

Like The Untamed also adapted from novel and features BL characters. Bromance is major plot line in the drama. Like Untamed also focuses on crime solving but both of them are on different level.

Both dramas have similar vibes; they are both about mystical elements (ghosts or dreamworlds) set in a modern-day world.
The female leads in both dramas are tough, powerful and strong while both the male leads are introduced to a new world of either seeing ghosts or entering dreams.
If you like Hotel del Luna then you will like Mystic Pop-Up Bar and vice versa.

Crown Prince Yi Gak finds that he has been transported from the Chosun Dynasty to modern-day Seoul. He meets Hong Se Na, who bears a striking resemblance to his dead wife, and is determined to solve the 300-year-old mystery of her death. With his own resemblance to the CEO’s grandson at the company where Se Na works, Gak assumes the identity of the young man to stay close to her. Can the Crown Prince navigate a modern corporation to find clues to his own time period?

Set in the world of television broadcasting, Na Mi-rae travels back in time to prevent her 32-year-old self from marrying news anchor Kim Shin, thus sending her past self down a different path and enabling her to pursue the things she really wanted in life

In 1986, Park Gwang Ho works as an excellent and enthusiastic detective. His life changes when he’s pursuing leads in a serial homicide case and then passes through a time portal, which transports him to present-day Seoul. He meets a new partner Kim Sun Jae, an elite detective who happens to be a bit eccentric, but is one highly skilled investigator. The detective duo will also find help in psychology professor, Shin Jae Yi.