I'm posting this recommendation request because I have an impression of Kdramas compared to Cdramas that I hope is wrong, but I need your help proving it. 

My (hopefully mistaken) impression is that in Kdramaland it's much harder to find a show where you actually get to enjoy the leads being together than it is in Cdramaland. When it comes to Cdramas, I can think of a bunch of shows where the main couple is enjoyably together for a sizeable number of episodes. Here are a few examples:

Exclusive Fairytale

Forever and Ever

Forever Love

Hi Venus

Hidden Love

Love Me, Love My Voice

Love O2O

Love Scenery

Meet Yourself

Road Home

When I Fly Towards You

You Are My Glory

You Are My Hero

It's not that the leads get together early in all these shows (they don't). It's that all these shows give the audience a lot of time to enjoy the leads actually being together. And it seems like that's harder to find in Kdramaland. I can think of Kdramas where the leads are together for a good chunk of time, but that time is so angsty and melo that you're not really enjoying it. And I can think of Kdramas where the leads are enjoyably together, but only in the last episode or two. With the exception of King the Land, however, I can't think of any Kdramas where the main couple are enjoyably together for a significant amount of time.

I hope I'm wrong. Can you all help?

You are quite right....I tried to find some recommendations for you in my watched list and came up pretty blank and mostly with c-dramas. It is truly hard to find couples dramas in korean drama world XD

So what I'd find: 
Something in the Rain - leads are quite a bit together there but then there is an obstacle that is really annoying. however their together time is quite cute 

The World that they live in - a more olderish drama but it is well done and has a lot of couple/kissing moments.

Yumi’s cells 1 and 2

These are good recommendations, I'll check them out!

Her Private Life - they get together about half way through so we get to see them together a nice amount.

Thanks, I will check them out.

You are my spring, Hometown Cha cha  cha, and love to hate you are some where you can see the couple together