So..
It may seem well off but Penthouse strikes to be the much more modern and adapted version of Boys Over Flowers. I believe they follow the same basic plan of a drama and develop into different plots. In both series, a lot happens in every episode. The plot of Penthouse is more thought out and the quality of the drama is top. I rate both these dramas very highly, Boys Over Flowers is more of a comfortable vibe.

There will also be other similar shows such as:
Heirs (Inheritors)
Sky Castle
Meteor garden
The Chinese/ Thai remakes of BOF also
And other similar dramas…

Both have a plot based on gameplay and include quite impulsive, jumpy, graphic scenes. Both will be continued for another season. I personally like Alice in Borderland better so I recommend watching squid game first.

Both are based on relationships started off playfully yet progress into a story of toxic romance and unpredictable endings, while side characters have their own stories. Tempted was a great filler show after finishing Nevertheless that leaves the viewer emotionally turmoiled.