I’m looking for a good kdrama please recommend your best ever drama or something:D I like mystery, crime, romance and historical. My favorites are reply 1988 and signal. 

Mother (korean version),
Graceful Family,
Kill me, Heal me,
Angry mom (incredible good),
Spring turns to Spring (so funny and good plot),
Lawless Atorney,
Voice (all seasons).
Missing You,
King2Hearts,
Kill it,
City hunter,

You should definitely try watching: Healer, Fight for My Way, Mad Dog, Chicago Typewriter, Hotel del Luna, Legend of the Blue Sea, Come and Hug Me, W - Two Worlds, Strong Woman Do Bong Soon. They are my all time favorites.

As for historical: Tale of Nokdu, 100 Days My Prince, Queen of Seven Days

As for crime and mystery also Sketch and Leverage are really good. I hope it helps!

Thanks both of helped a lot :)

Mystery/Crime

  • Secret Forest
  • The Guest
  • Quiz from God
  • Kingdom
  • The Fiery Priest
  • Tunnel
  • Special Labor Inspector Jo
  • Player
  • Graceful Family
  • Psychopath Diary

Historical

  • The Tale of Nokdu
  • Haechi

Romance

  • One Spring Night
  • It's Okay, That's Love
  • Put Your Head On My Shoulder (Cdrama)

The Village: Achiara's Secret is an often overlooked mystery Drama, and Circle is a VERY rare  K Drama for combining true SF (without any fantasy/supernatural elements), with a murder mystery.

  • Stranger
  • Hello monster
  • Tunnel
  • Voice
  • The greatest love
  • Healer 
  • Kill me Heal me
  • The master's sun
  • Just between lovers
  • Cole and hug me
  • 30 but 17
  • Weightlifting fairy
  • Fight for my way
  • The moon embracing the sun

Fight for my way

Because it's is my first life

Arthdalchronicles Chronicles

Voice

Kill me heal me

Healer

Chicago Typewriter 

W-two worlds

Strong woman do boo soon

Mr Sunshine

Descendant of the sun

It's ok that's love