Recommendations

Sung Soo is a successful businessman who lives with his wife Min Ji and their 2 children in a luxury apartment. Life is mostly good, except for an older brother from whom he's estranged. One day, Sung Soo receives a phone call that his brother is missing and goes to his brother's apartment building for the first time in decades to look for him. There, he finds strange symbols carved into every door and meets Joo Hee and her young daughter. Joo Hee is convinced that someone is spying on them and lives in constant fear. Sung Soo figures out that the symbols carved onto the doors are "hide and seek codes" that indicate gender and number of people. Then when he returns home, he finds similar symbols carved into his door.

Veteran detective In Ho receives a report from a man about an airplane terrorist attack. While investigating, he finds out that the suspect boarded the KI501. Despite his phobia of airplanes, Jae Hyuk decides to go to Hawaii for his daughter. At the airport, Jae Hyuk is distracted by a suspicious man with a threatening tone walking around. The KI501 flight departs Incheon Airport and heads for Hawaii, but soon a man dies for an unknown reason, and the situation of fear and confusion spreads not only on the plane but also on the ground. Upon hearing the news, the Minister of Land, Infrastructure and Transport, Sook Hee, formed a counter-terrorism countermeasure headquarters and convened an emergency response meeting to find a way to land the KI501.

It's Christmas-eve. In an ultra-luxurious, 108-story, residential high-rise, Tower Sky, the annual White Christmas gala is underway, dazzling the elite tenants and their VIP guests. When unthinkable disaster strikes--and out of reach of help--panic erupts. Now two strangers must summon the strength and courage to save thousands.

Former serial killer Byung Soo, diagnosed with Alzheimer's due to a traffic accident 17 years ago, begins to fear he may be responsible for recent murders during his memory lapses. When he suspects Tae Joo is the real killer, he tries to gather evidence but only attracts Tae Joo’s dangerous interest. With his memory fading, Byung Soo must protect his daughter from the threat.

They have a very similar setup. Both stories involve a scheme to seize the throne, an attempted assassination, and a doppelgänger who takes the place of the crown prince or princess. The main difference is that The Air is a GL story, while Thara Himalai is a straight romance. In The Air, the love interest is the princess's bodyguard, whereas in Thara Himalai, the female lead is a doctor.

The Rebel Princess” similarly follows a privileged but feisty young woman from her coming-of-age ceremony to her marriage with a powerful man and their relationship as they navigate complex political schemes and power struggles. An immersive story, complex characters, and beautiful production values (especially the costumes) keep this historical drama engaging across 68 episodes.

Similar to love of silom DYTD is also a crime romance drama where the leads romantic plot goes along with the case being solved but the only difference here is both the leads are inspectors

Chastity high - the high school that prohibits dating but students are still secretly dating
Filing for love - investigation of adulteries at the job
Both have different stories every episode and main couple

Premises have common points. A father died and his soul is transferred in a younger man.
Humorous tone and romance seems to be other similarities.

it shares the same justice fantasy where an ordinary-looking authority figure secretly possesses extraordinary abilities. much like teach you a lesson, the protagonist enters school environments dominated by violence and intimidation, protecting students and taking on threats that conventional teachers couldn't handle. the tone is lighter and more comedic, but the feeling of "the bullies finally met someone stronger" remains almost exactly the same.

both feature an authority figure who completely rejects traditional educational methods. Just like the protagonists in teach you a lesson, onizuka believes some school problems can't be solved through talks or bureaucratic punishments alone. he directly confronts bullies, abusive class leaders, and corrupt school systems, using extreme methods to protect the most vulnerable students.

Remake short, Vertical film of “the love you give me”
Liang You Qi, a rich second-generation, fell in love with Jiang Xue Li and framed her lover Shen Si Nian and put him in jail, threatening her to marry him. Jiang Xue Li was forced to say hurtful words and broke up with Shen Si Nian. Many years later, Jiang Xue Li's life fell into a state of desolation, while Shen Si Nian became a new business upstart. By chance, the two met again, and all kinds of memories of the past resurfaced in their hearts.

Similar plot, where the main character travels from the Joseon era to the present day and has to adapt to the modern age.

In both the series the fl pretends to be a robot,although the circumstances differ.
In My ceo thinks i'm a robot she has a crush on the ml while in the I'm not a robot the fl pretends due to a circumstance which forces her to act like one!

Both have police cases that needs to be solved. One case is Supernatural themed (Goddess Bless You from Death) the other is a thrill real life hidden killer type of case (Dare You to Death).
Written by the same author.
Great chemistry between the leads.