Entourage (2016)

These two dramas aren't plot-wise similar at all but the comedy in these dramas is really similar. The overall feel in these two dramas also is really similar. If you liked Entourage I'm sure you'd like The Lover as well. And vice versa.

Both have same plot: behind the scene of korean entertainment and dealing with scandals and image of actors + romance subplot.

I recommend watching both series. Entourage is a more serious dark humor on screen and is about 4 friends trying to find themselves in the world of stars, but the characters in both shows are similar in that they hide childish emotions inside them without being suspended from what they are going through and the daily routines and behaviors that make the viewers laugh.