Recommendations

Mm... Somehow the vibe of NNK felt similar to TSHLYE and both dramas deal with trauma. Both are good dramas with good chemistry between the characters. NNK is more comical though.

HCTM is an underrated drama. It has a great body of actors who deliver a great performance and story. If you are looking for a story that relies on character development and doesn't rely on gimmicks and silly tropes, then you won't regret watching this.

Fights Breaks Sphere will might be similar to fights breaks sphere season 2 because it may be have similar storyline but not same cast but second season I’m not sure how it will be different

The legend of Fei is similar to legend of fei movie because it’s will might be the similar storyline but not the same cast it will might be different cast then what you see in drama

Immortality similar to the society of the four leaves because it focus on main male leads and it’s also bromance but there hasn’t been any updates for when the dramas will air

Immortality is similar to flying Phoenixs because it’s also a bromance drama and might be similar to winner is king to.

Both these dramas are gripping thriller that will keep you on edge.
Makjang, murder, mystery, friendships, a lot of drama and bitterness are to be expected.

Both Dramas are based on legends and are a must-watch for Fantasy lovers!
If you just couldn´t have enough of Lee DongWooks acting in Goblin;
you may be thrilled to hear that he takes on the Main Role in Tale of the Nine-Tailed :D

Made by the same director, these both dramas hit the same way. Prison playbook has less romance and more comedy and is a slice of life drama set in a prison. The kind of drama that'll make you laugh till you cry.

Both male lead lost their mother and living with their father
Both male lead trying to be great ruler and great soul master
Both main lead go to school and create their group

They are both told around funny and precious families.
Also let's just say the love lines have some similarities.

Both Search and The Flu are science fiction and thrilling stories about viruses that are infecting people in Korea.

Both dramas doesn't have anything in common... It just comes to my mind because they're both about SOLDIERS.
Search is about virus that's infecting people and Descendants of the Sun is romance between doctor and soldier.

Both dramas revolve around modern, independent, working female leads and issues they are facing in their love/family lives. Both are stories about married couples.

Although "Oh, Mando" and "Hello Stranger" have different story arcs, both BL series are made by the Philippines Largest Broadcast Network - ABS-CBN.