So a scenario where  the Male lead  (Prince/king) loves more than one woman be it a Concubine/Queen or 2 Concubine etc.
Is there such a drama,cause i see the harem tag on some shows that i haven't seen but they do not seem to be such cases.

I'm not sure you're looking for something like this, but in The Promise of Chang'an FL is part of the harem, and while her husband, the emperor, is not ML, he is SML and plays a significant role. Her two sisters are also part of his harem & he has a good relationship with all of them, more or less. 

yeah kinda similar but i would want the ML to be the one in the authority position and see how the Female leads interact with each other and the ML being torn between the two of them.

Maybe Untouchable Lovers? The FL and SFL are both married to the ML and (at somewhat different times, since he starts to fall out of love with the SFL as he starts falling for the FL) he's in love with both.