Kdrama without love triangles + happy ending

Hello, I've  watched a lot of drama and i don't know what to watch next.

can you suggest me a kdrama without love triangles and with an happy ending?

I prefer romantic comedies without too much drama, no historic dramas (I've tried but I've never really liked one a lot), and no noona dramas.

I hope that someone can suggest me something I've never watched!

Thank you :)

Introverted boss
Oh my venus
Noble my love
Sensory Couple
Secret garden
Descendants of the sun?
It's ok that's love (i've heard that it doesn't have a love triangle but idk if she's a noona)
The best future
W

I have some here for you even tho it was hard since you've seen most of them :)

Mask - It has some romance, some comedy, but the plot is more thrilling and psychological. There's no love triangle, I think you'll like this.
That Winter, The Wind Blows - It's a melo, but it's romantic and no love triangle
Heartstrings - It's a light-hearted, cute and fluffly music college drama
King2hearts - a must-see korean drama that is good! Has some action, has some rom-com and thriller. It's a rollercoaster ride.
City Hunter - I actually dislike action dramas but this one's great and definitely a must-see drama! My alltime fav

Goblin

Descendants of the Sun

It's Ok that's Love and Master's Sun

Oh my Venus

W

my shy boss
the girl who sees smells  (I can't like female lead but the story is good)
city hall
healer (beautiful story and pure romance)