Disco Elysium? More or less entirely conversation-driven RPG about an alcoholic cop who drunk himself to submission so hard he forgot who he is, hence developing him back with skillpoints. Off the top of my head there’s like one combat situation which you can talk around if you’re so inclined.

Otherwise, it’s been said many times that “Planetscape: Torment” is similar … ish. Not the setting, but mechanics, apparently you can entirely go through the game without combat - but that’s not to say there’s not going to be bodies - or so I’ve been told, haven’t played the game to completion, only dabbled the beginnings.

So, these suggestions are with grain of salt, obvs. But afaik both are pretty high up on the rpg shelf.