Gripping drama where romance is subtle

Hi, I'm looking for a Chinese (or Korean) drama where the romance is subtle or secondary to the plot. It can be historical or modern-day but I'm just looking for something that's interesting yet romance isn't overpowering the story.

Thanks! :))

1. The Vigilantes in Masks 
2. Medical Examiner Dr. Qin 
3. Guardian 
4. Detective L 
5. Day and Night 
6. An Oriental Odyssey 
7. The Advisors Alliance Didn't watch this yet, but I herad that it doesn't have much or even no romance!
8. Nirvana in Fire 
9. Nirvana in Fire 2: The Wind Blows in Chang Lin 
10. The Longest Day in Chang'an 
11. Under the Power  I'm in ep15 now and there is no real romance till now, but I'm not sure about afterwards.

Hyena 

Young blood 

THANK you ALL so much!<3

I second 

• Mad Dog (very little romance, more like hints)
• Guardian (bromance)

And add: 

• Bad Guys (no romance, but good thriller)
• Healer (a bit of romance but not the main genre)
• My Country: The New Age (does have romance but again, not main focus)
• Duel (Thriller with no romance, but really good)
• The Untamed (bromance)