If you don't need to grab wonders or religions, choose according to your own civilization, initial technology (click the flask button to expand the technology tree) and resources near your birthplace. For example, if there are marble granite near the city, priority can be given to stone carving and grab the early wonders by the way. Without stone resources, if it is difficult, the wonders can't be grabbed basically, and stone carving can be suspended.

Civilizations with religious advantages, such as Celtic (jungle belief in violence) and Ethiopia, can go straight to religious science and technology, and it is very useful to grab good faith.

Generally speaking, the higher the difficulty, the higher the military-related technology, and the war is inevitable. It is difficult to cheat AI by farming, and it is necessary to forcibly expand it as early as possible.