havent read kings maker in a while, so im not sure how well it compares but radio storm has a really interesting premise and good world building
https://www.mangago.zone/read-manga/radio_storm/
Yea i let it marinate too. The plot is intriguing but it is a slow burn. Best to let burn slowly on its own. Another is I can see your stat (its great but rushed) but it seems youve read it already.
Try: (stories with great plot and execution and art may not be as complex as KM)
Painter behind the curtain
Green apple paradise
Sasaki to Miyano
Darkness before the Dawn
Little Mushroom

Is there any bl manhwa that can match King's Maker when it comes to plot? I've been reading for years, but after finishing KM, I find it hard to look for something new to read. Everything feels bland compare to KM