Top 20 most popular kdramas

Certainly! Here is the list of popular Korean dramas as of September 2021, with a note mentioning the potential for changes in popularity over time:

"Crash Landing on You" - A romantic drama that gained massive international popularity. 

"Descendants of the Sun" - A military romance drama that captivated audiences. 

"Goblin" - A fantasy romance drama with a unique storyline. 

"Itaewon Class" - A coming-of-age drama set in the vibrant district of Itaewon. 

"My Love from the Star" - A romantic fantasy drama that gained international recognition. 

"Reply 1988" - A heartwarming drama set in the late 1980s, focusing on friendships and family. 

"The Heirs" - A high school drama featuring a star-studded cast. 

"Secret Garden" - A fantasy romance drama known for its body-swap storyline. 

"Strong Woman Do Bong Soon" - A romantic comedy featuring a super-strong female lead. 

''What's Wrong with Secretary Kim?" - A romantic comedy centered around a narcissistic CEO and his secretary. 

"Weightlifting Fairy Kim Bok Joo" - A heartwarming sports drama about a weightlifter's journey. 

"Moon Lovers: Scarlet Heart Ryeo" - A historical romance with time-travel elements. 

"Hotel Del Luna" - A fantasy drama set in a mysterious hotel for ghosts. 

"Boys Over Flowers" - A classic high school drama based on a popular manga. 

"My ID is Gangnam Beauty" - A romance drama addressing beauty standards and self-acceptance.

"Fight for My Way" - A slice-of-life drama depicting the struggles and dreams of young adults. 

"While You Were Sleeping" - A fantasy romance drama involving dreams and premonitions. 

"Doctor Stranger" - A medical drama with a mix of espionage and romance.

"Kill Me, Heal Me" - A psychological drama featuring a protagonist with multiple personalities. 

"Signal" - A gripping crime thriller involving communication across different time periods. 

Please keep in mind that this note is based on the assumption that popularity can change over time, and the actual popularity of these dramas may vary at present.