Me and a bunch of friends have been having fun with this lately, some picked Romania and turned it into the Saudi Arabia of europe with oil exports, one has made Iran a nuclear power by 1957 which was awesome. More though, Iranians have a decent standard of living!
I personally have been doing Ethiopia, I got a good industrial-consumer economy going, and wood exports. Lots of wood. However now the industrial parts have big problems as there is a global shortage of raw materials, and being silly I have no excess cash to make large purchases. If I continue as Ethiopia I will have to deactivate all my consumer economy and maybe industrial too, for a time.