For something completely different try My Fellow Citizens! It has politics, romance, company power struggles and a whole lot of laughs.
Encounter might work. It is primarily a romance but there is also family power dynamics and some politics and she is the CEO. I found this one to be a good, steady paced drama without the really bad, never ending, nasty stuff (now that I have watched it a few times I just skip the nasty mothers bits).
The Rational Life - Netflix Original, very new, not on MDL yet. I haven't watched it yet either.
SKY Castle - This one might be a bit too full on for me so I am not sure I'll watch it. Looks like lots of family power dynamics and petty (scary) one-up-man-ship.