Just need recommends for the above
Novels with politics or kingdom building or both
Well I have recently started a novel,[The Knight and the Apocalypse: A Second Chance at Life], and it fits around your parameters I believe, it's only 13 chapters in right now, with the14th about to be uploaded today, but it's definitely going to be a heavily political and kingdom building story, no harem and that kind of stuff, just hardcore fantasy, action, and politics, I'm not sure if I will add romance in the future…that totally depends on how the story progresses in my mind.
Insight_Owl
You might like to read this, it is badically a political thriller on royal court politics with a slow burn romance. So it checks both your categories.
However since I have no idea how deep or simple you want your stories to be, I don't know if this is what you are looking for. There are royal court conspiracies, spy networks, multiple groups trying to overthrow the king and some hints of law makingjust to highlight few aspects. [https://m.webnovel.com/book/snow-n'-starlight_24482881305635405](https://)