I want a drama with this kind of situation where the leads hates each other from beginning and turn to best friends. 

E.g.  Goblin

It's Okay, That's Love 

The Beauty Inside I highly recommend this.

Memory Lost 

Rak Kan Panlawan 

Tahi BL Bad Buddy

King2Hearts Really fits your description

Protect the Boss 

Oups I realize that I misunderstood your ask. I gave you dramas about people who begin as ennemis, than best friends, and end up in love with each other. Do with it what you will haha.