To give you example,

my best korean dramas list by far:

My Love From The Stars

To The Beautiful You 

Master's Sun (I really liked everything except those scary ghosts xD)

She Was Pretty

But I really liked The Girl Who Sees Smells, Pinocchio, The Heirs.

I haven't finished Flower Boy Next Door but I really like it!

Warm and Cozy, The Time We Were Not In Love, Heartstrings, Love Rain, Prime Minister and I are great too.

I'm watching Oh My Venus and I like it.

I would like to watch korean drama where "There were no evil Moms, nor were there any rich, chaebol ahjussis taking over the whole plot." (copied from Ash review of She Was Pretty because she described) And I don't like Medical dramas because of blood and operations I just can't watch those kind of things and It's sad that "Emergency Couple" and "Faith" is like that kind of drama.

I would like it to be Romantic Comedy, I don't like Melodramas. Also I'm not really into Action, Thriller and dramas where there is bullying (like in Boys Over Flowers and School 2015)

I'm not a fan of historical drama, because of politics, but if there is interesting historical drama without politics, you can recommend me.

Reply 1997 will fit your bill!
Then Reply 1994, and Reply 1988 haha.

Oh My Ghostess is really good too, there's like maybe 5 minutes total of possibly scary scenes throughout the 16 episodes or so.
Definitely second the reply series and Oh My Ghostess
Other ones possible ones would be: Greatest Love (or Best Love), Gentleman's Dignity, Personal Preference (or Personal Taste), Prosecutor Princess, Flower Boy Ramyun Shop, Marriage Not Dating, and Sungkyunkwan Scandal (its a fusion historical but not really that political), 

Those are the ones I got off the top my head.
I have just now watched first episode of Sungkyunkwan Scandal and I don't think I'll continue watching because there is too much unjustice, that's why I'm not a fan of historical dramas not only because there are politics but also because of so big unjustice.
HA. Third the reply on Oh My Ghost. I just finish it. It is great!! I also like below.  

I Remember You
Scent of a Woman
Birth of a Beauty
Healer
Fated to love you
I remember you
Reply 1997
Reply 1988
Modern Farmer
You're beautiful 
well i understand your point as i also like romantic comedy which are not too boring and not with unnecessary compications and twists .

here are some which u will like

You are beautiful ................ a girl pretending to be boy
marrige not dating ............... awesome romance and comedy
my fair lady or take care of young lady ............... very humorus and the lead actress occupies the main plot with her rude and aggressive behaviour . \\also                                                                                  watchout for the sweet little kid
my lovely girl ...................... romantic and emotinal
i can hear your voice ............ special plot with little bit of action but u will like it
missing you .......................  highly emotional and no comedy plus u have to bear with starting episodes . but after that is something very nice

the only historical drama i like
arang and the magistrate ................. less or no political plot as u mentioned

there are more but its enough for now :D
Oh My Ghost and Reply 1997 is reallyy really good ! give a try ;)
My Love Eun Dong is a really underrated drama, but it's sooo good! And it's one of the most romantic if not the most romantic drama I've ever watched! Give it a try!