The Producers (2015)

Pontifex Rembrary, a character known for his divine powers, gets transported to a new world while fighting a devil. He possesses the body of Woo Yeon Woo, a member of an unpopular idol group, and helps turn the group's fortunes around after a disastrous live performance. With his charisma and divine powers, he becomes popular among fans but faces challenges from his past, contending with strange religious groups and the devil.

Both dramas feel similar, in concept, the way they were shot and produced (documentary-like).

The Producers tried to focus more on the "the behind the scenes" aspect of producing a tv-show, while Our Beloved Summer focused more on how to film a documentary about random people, and of course mainly the romantic relationship between the leads (which is way more interesting in OBS)
In both dramas there's an idol whose sole purpose is the same (even though they have opposite tempers), to show us some hardships of an idol life : no friends, no real free time, dealing with fans and anti-fans, no privacy... AND to have their first impossible and one-sided crush on the ML !
If you liked The Producers, you'll probably enjoy Our Beloved Summer, I don't know about the other way around

I think one of the main female characters in this drama has similar characteristics to the main female character in Queen of Tears

Both YG and the Producers have a mockumentary, Office-style. The Producers steps away from it after the first couple episodes for more of a standard drama, but YG is mockumentary all the way. Both are also full of cameos from the entertainment industry (YG's mostly being YG artists).

The major difference is that YG has no actual plot or romance, where The Producers is an actual drama. YG is just random comedy; each episode almost feels like skits.

If you liked The Office or the quirky documentary feel, watch it!

Another drama full of IU's brilliant acting, if you want to see more IU, then this is the perfect drama for you.

Both show the behind the scenes/making of dramas and shows,
with some cute romantic pairings too.
Same realistic feel (through BeMelodrmatic more realistic and heatfelt of the two imo)

Both dramas are set in the world of TV broadcasting and about the life and stresses of show-runners, directors, actors and producers. The world we live in is probably one of the more realistic Korean dramas I have seen. It may not be everyone's cup of tea, there is neither comedy nor a love triangle, but I would recommend it.

Both are documentary style dramas, one a series the other a film. They both demonstrate to comedic effect how in the age of cool, we frequently like to portray ourselves as being in control and unperturbed when our actions prove otherwise.

Pinocchio was actually the opposite of this series, but both were talking about media.
-So I think if you're seeking a more serious drama that tackles about media industry, I strongly suggest you watch this after. :)