Any recommendations for games that focus on diplomacy?

!g*mers I'm looking for a strategy game that's built on interactions with the AI. Where diplomacy is truly meaningful to the game and not just tacked on. Civilization and Total War are far too simple, to provide examples of what doesn't work for me. I've always heard Paradox games are good for this but I'm looking for more niche recommendations (plus that dlc shit expensive)

I'd like diplomacy to be more important than any fighting mechanic (though I'm not saying war can't be in the game) or internal management (like settling uninhabited land by yourself in Civ) I'm also looking for AI that's capable of actual deals. In simpler games AI will never give you a fair trade or sell you territory and they're always asking for handouts they would never give you in a million years. Something like the Louisiana Purchase is impossible in a lot of games because the AI would never give up that much land to a nation it was only on okay terms with no matter how much money was offered. Real life humans are selfish yet history is filled with alliances and deals and quid pro quo. I'm tired of AI that has toddler levels of spite and greed. I want diplomacy you can work with.

Recommendations don't have to be 4X but I am looking for strategy and not something like a Telltale story.

Thanks @kaamrev!