I should have thought about that derpy me, Europa Universallis 3 would be a good place to start and is also my personal favourite and maybe try Victoria 2 or Crusader Kings 2 once you get the hang of it.
EDIT: I should add they are all RTS games (Think the Total War series but as an RTS and more in depth without the battles) also Crusader Kings 2 has some RPG aspects to it.