The Romance of Tiger and Rose (2020)

Both are dramas with a real world FL entering the fictional world of a novel and falling in love with the villain.

Same male lead.

Bubbly female lead

Female lead gets stuck in the world of the a novel. To return to the real world, she must complete the key mission assigned by the system.

Although this is a parody, here the female lead is also a 21st century woman working behind the scene in the film industry, who transmigrate in an matriarchal universe. There she is in the body of a monarch who possess an harem of about 30 men.

Modern day FL in historical setting, falling in love with ML.
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Both are lighter, fluffy dramas with a modern/future FL in a historical setting.
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Both are fluffy dramas with a modern day FL entering a historical world and falling in love.
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In both dramas, the FL is from the real world and accidentally enters the world of a novel where she and the ML were antagonistic toward each other. However, her change of personality causes them to fall in love instead.

same actress, has a similar atmosphere and setting. fl both enter into a another world via through game or through entering her own book. Both lighthearted genre and funny.

Both have a real world FL entering a fictional world and finding love with the ML who is the antagonist of the story.

Modern day FL, historical ML. Both plots involve the filming of a historical drama.
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The FL ends up in a different world from her own and meets the ML who initially tries to kill her but then slowly falls in love with her. Both are mostly light and fun dramas.

Light-Hearted Dramas

Both FLs are very playful and cheerful

Both have love triangles

Both are mainly comedy/ romance genre

TROTAR is having better story, cast acting and cinematography

Modern day FL enters historical setting and falls in love.
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Modern day FL ends up in historical world.
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Writers of scripts/novels end up in their own works by accident and have to get inventive in order to find a way out. Their main problem is how they wrote the ML (who is pretty set in because they were written that way) and that the main scenes of the plot have to happen in order for the story to advance.

Both are hilarious and actually very entertaining.