Lost Romance (2020)

Lead is in a coma… in legally fl and in lost ml and fl
In legally the fl goes back into the past and in lost fl and ml goes into a romance novel
In legally ml had a crush first and in lost fl had a crush first
In lost ml is battling his family in reality and in the novel….in legally the fl is facing reality about what could have been….can’t wait to see how this drama plays out

Same plot. Writer went into the book that she's writing. Same concept of romance novel with an overbearing CEO as ML.

Both works make fun about the current drama tropes and are extra meta to watch.
There's also a blend of the fictional and the real worlds in both dramas -- one character in Be Melodramatic is a drama scriptwriter and it's clear her drama is loosely based on her own story.

More of an Adult romance with Cold CEOs and strong women. Both CEOs deal with a fear from childhood and eventually work really hard to get the main FL. When I finished this series Whats Wrong with Secretary Kim came to mind....if you liked Lost Romance their is a good chance you'd like Whats Wrong with Secretary Kim as well.

Although these two shows are very different in various aspects, they have a few things in common. Both of them are about a character that travels into another dimension/back in time and goes through many ordeals because of it. The two of them are also romantic comedies.

both fl are transmigrated into a novel
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If you like dramas with a no-nonsense female lead, strong, brave and independent, you have found the right ones here! They both feature a classic rich man/poor woman story albeit with a twist: the FL is not a damsel in distress, a white lotus, a doormat! They are so fun to watch here! And of course, the ML melts and become human after meeting this strong woman!

Both carry a strong sense of the main characters caught in a story. And through the dual contexts, there is opportunity to mock and/or celebrate the typical tropes and cliches.
*LR is trapped in a contemporary romance.
*The romance in LS takes place mostly in a historic context where the FL feels like they are following something already scripted.

They enter a world of manga / manhwa and live a romance with the protagonist of the story..............

Both dramas are very similar in the regards to the story. Both female leads end up in an alternative world, where they meet people, who they know in the real world, but now with different identities and lives. Both female leads suffer from a sort of "amnesia". Both investigate a case, that is the reason for their situation. Both dramas revolve around a romantic interest, that is connected to them in the real world.
The biggest difference is that Shards of Her is a more traumatic drama, whereas Lost Romance has a more lighter take on it.

Both FL work with ML
I also think looks are very similar
ML handsome, short black hair
FL not the most confident, short orange hair

Villain falls in love with the main character of the story. Same trope of power struggle between companies.

While MGIAA is definitely more trashy (but fun) than Lost Romance, I feel they are overall similar in terms of the ML and that the FL is out of place. In one drama she’s an alien, in the other she entered a comic book.
Also I feel the couples kinda look similar?

The ML will fall into a coma, and the FL who wrote the story of the ML who is a character in his book, will enter the space time of his Novel to be able to save him and change his destiny

Lost Romance is about a woman being sucked into a cheesy CEO-love romance book. She finds out that she's supposed to be the side character that bullies the FL of the romance book and is determined to capture the heart of the CEO while being friendly with the real FL. The relationship is hate-to-love.
Memories of the Alhambra is about a VR game glitching and becoming part of real life (it's hard to explain. Let's say that you were shot in game and die, you die in real life too. And, if you take off your VR glasses, the game console doesn't disappear). The relationship is also hate-to-love.
Both of these dramas focus on the death/coma of an important character and both focus on survivor's guilt.