Hi 


Do you know any strong revenge Korean dramas but with strong plot and it is new from year 2014 and above

ILJIMAE- Worth the watch!
From 2008 but pretty good even for present day standards!
Also stars the versatile Lee Joon Gi!
Unfortunately don't like historical dramas 
Secret- great Melodrama good revenge plot.
pinnochio
i hear your voice
doctors
remember - war of the son
you're all surrounded
i remember you (2015)
38 task force
Angry mom
doctor stranger
The Full Sun, 
Mask ,
and absolute must watch - Punch.
year 2014 and above:

birth of a beauty
heaven's promise

before 2014 but still pretty good quality:

one well-raised daughter
yellow boots


and if you're okay with a chinese revenge drama, I would strongly recommend "Return of the Heiress" 

On another note, some good revenge Thailand dramas if you're interested include:

"Plerng naree"
"Raeng Ngao"


First Names that came to mind is;

Secret
Mask
I Hear Your Voice
Angry Mom
Empress Ki
The Princess' Man

I noticed you said you don't like Historical Dramas, but i still feel like i have to recommend you give the first episode of Empress Ki a try. It's fast paced and it starts off strong from the first episode. It's okay if you don't but at least I tried ;) lol