Recommendations

Big issue parodies dispatch while WWW parodies Naver(Unicon)

Strong female leads in both,
Badass mind games, mature people,

One Spring Night and Beacause This is My First Life have the same realistic feeling about life and romance. Story is calm and heartwarming.

Love Buzz is a high school drama and whilst Tomorrow with You is adults. They both envoles around time traveling and love. I recommend Love Buzz more because I feel like the leads had a stronger relationship despite being such a short drama.

My Only Love Song is one of my favorite "time traveling to historical times" drama, and Joseon Survival has similar vibes, and they both time travel because of a car

both Live Up to Your Name and My Only Love Song are my favorite "time traveling to historical times" dramas.

Both deal with how the Internet is used and misused. Both have a female lead who is good at her job and unapologetic about their methods.

Both are comedy that show monsters living in the city and the bureau that oversees them. The bureau's mission is to keep the existence of monsters a secret from the human.

At first glance these two dramas aren't exactly similar but having watched both, there is a similar tone and vibe these shows give off. Though Sweet Combat is about boxing and martial arts and My Mr Mermaid is about swimming, both of these dramas are set during the college years with super cute main couples and a great group of friends though the friend group in My Mr Mermaid feels a bit closer. Sweet Combat also does have a bit more drama cliches (rich female lead with a disapproving grandfather) but overall if you like one, you'll probably like the other.

The dramas are very similar in that they both deal with overbearing families, both dramas have a grandma overseeing things, and both have lots of shady things done by characters to backstab each other, get ahead in life, etc.

You get the same happy feelings while watching these shows. Both are university romances where the characters experience their first love/ first relationship. I both the guy falls for the girl first.

Similar genre and storyline, set on the almost same era of time. Related to pre war time and very similar love story.

Both Male Leads take a pill (drug) that enhances their abilities...
Vivid Romance is about a guy who’s struggling with his police exam, and take a pill in a human drug testing place, has no side effects and become really smart and fit.
Bad papa is similar in the way that the male lead also take a human drug test and has no side effects from the pill but instead of becoming smart he come strong.

Reply me 1988 is my all time favorite drama. I almost got the same vibe after watching le coup de foudre. Both are wonderful dramas. Both starts with present life where the leads are husband and wife talking about their youth and how they have come to this point but the only difference is we don't know at first who the husband is in case of reply 1988. Both have multiple couples with wonderful stories of their own including their parents love.Both teach us to appreciate our families and friends. No annoying side characters which is a big plus point for any drama. Some might find both series a little slow paced but trust me its all worth it. So if u like slice of life dramas i would recommend both of them.Trust me they are very feel good dramas!! Enjoy

Written by the same screenwriters, they are really different. This is more a political drama about the Hangul invention. But in the first 3 episodes you can find Song Joong Ki as Young Lee Do (Great King Sejong).

Written by the same screenwriters <3 Arthdal can obviously put before Silla time.
Both talks about a cursed child grown up far away from their land. They both return to find who they are... in Arthdan also to save someone.