essential jdramas?

i love jdramas, but i haven't really watched most of the popular or classic ones. which jdramas would you say are "essential" jdramas or maybe some of the more popular ones i should watch?

There: 

• 1 liter of tears
• Gokusen
• We married as a job
• Hanzawa Naoki
• Code Blue
• Hero
• Emperors Cook
• Kounodori / Dr. Storks

Here a list :

• Hanazakari no Kimitachi e (2007 version)
• Seirei no Moribito
• Kindachi Shounen no Jikenbo
• Mystery to Iunakare
• Kamen Rider (W, Drive, Build, Amazons, OOO)
• Life
• Dragon Zakura
• Final Fantasy XIV: Hikari no Otousan
• Mother
• Tengoku to Jigoku: Psychona Futari
• Nanba MG5
• Galileo
• Bloody Monday
• Higashino Keigo Samayou Yaiba
• Utsukushii Kare (BL)
• Eien no Kinou (BL)

 Popcxqueen:

No one has mentioned Alice in Borderland yet!! 

Well because OP has already watched it.

Adding on to the list:

• Majo no Jouken
• Kyou Kara Ore Wa
• 5-ji Kara 9-ji Made
• Amachan
• Nobuta wa Produce
• Proposal Daisakusen

I just finished Sweat and Soap and it's a new favorite. 

Also 30 Kin Sore wa 30-sai Miman Okotowari no Koi

This os going to be long...

• Hana Yori dando
• Maou
• Itazura na kiss
• 1 litre of tears
• Pride
• Mother
• Gokusen
• Nodame Cantabile
• GTO
• Ryusei no kizuna
• N no Tame ni
• Siren
• We married as a job
• Koi wa tsuzuku yo doko made mo
•  Liar game
• Kazoku game
• The Quiz show 2
• Dragon zakura
• Rookies
• Hana Kimi
• Proposal Daisakusen
• Buzzer Beat
• Bara no nai hanaya