I haven't watched a drama in which i have binged in so long, since i feel like i finished all the good shows. SO I'll want some reccomendations. Dramas I've really enjoyed are:

Alchemy of souls

Twinkling watermelon

18 again 

Twenty five Twenty one (Though for the first like 10 episodes i could hardly get into it, later on the episodes i started really liking it)

Extraordinary you ( Dan-oh was really the whole reason I liked the show, she was super funny and adorable)

Comfort shows I've watched :

True beauty

Business proposal

When I fly towards  you

Please give me any recommendations to cure my boredom! Thanks :D

I'm not sure which genres you are looking for, but if it's romance then:

Are You Human Too?

Love Between Fairy and Devil

Where Stars Land (melodramatic)

Eternal Love of Dream (has an age gap between leads)

Kikazaru Koi ni wa Riyuu ga Atte


If you are looking for a drama with supsense:

Circle

365: Repeat The Year

Revenant

Sleepless Society: Insomnia


Something that kinda has romance and suspense:

Reset

Come and Hug Me (melodramatic)

Bulgasal: Immortal Souls

Love Me If You Dare

Anatan no Ban Desu (age gap between leads)

Todome no Kiss


A fun adventure with friendship:

One Piece


Something that matches the comedy of Extraordinary Ordinary You:

Laughter in Waikiki

One The Woman

I don't know all that you've seen but the ones you listed are some of my favs as well.  So here are a few you might enjoy. P.S. Sorry if you've seen some of these. 

Once We Get Married

Exclusive Fairytale

Radio Romance

Professional Single

Girl Who Sees Scents- good mystery and romance. 

Assistant of Superstar

Moonlight- gives me similar vibes to "Assistant of Superstar

My Unicorn Girl

To Fly with You

Skate into Love

Mad for Each other

Shopping King Louie

Dear Little Mermaid

Our Secret

Sweet Teeth

Forever Love

My First First Love

Make My Heart Smile

Hidden Love- You've probably seen this because it's a lot like When I fly Towards you, but you never know... 

King the Land

The Liar and His Lover

To the Moon and Back- I don't know if you like Thai dramas, but this is a really cute romance that I really loved.

Shooting Stars

My Lovely Liar

Fall in Love with a Scientist

The Secret Romantic Guesthouse

The Love Equations

Girlfriend

Love Me Like I Do

I May Love You

A Good Day to Be a Dog

Truth or Dare

A Camellia Romance

Sorry, that was a lot. I put more than usual in case you've seen some of these already. I personally binged almost all of these, and are definitely worth the watch!

Her Private Life - I keep getting distracted from the drama because damn, that's a good-looking man! (Seems like pretty much all the main characters are.)

https://mydramalist.com/32293-her-private-life