Build as many regions a possible to multiply domain XP harvested from buildings and improvements as much as you can.
If you choose the national spirit explorers in age 4, you can harvest with them tons of XP in all domains by rushing the landmarks expeditions. Build early explorer armies to clear out barbarian camps at lightning speed for even more domain XPs (make sure to build at least one knarr - this unit can spit out one explorer per turn for 25 exploration XP each; cost is not increasing). This way, you will be quite ahead in all domains, having done more of the things that you want to do there already than usual, thus having more domain XP later to spend on the social fabric.
Then, try to manage to go into the age of discovery, giving even more tons of domain XP rewards.
In age 8, choose the national spirit pop culture. The red carpet gala ideal enables you to get a social fabric wildcard point per celebrity. Make sure to maximaize your arts XP production if doing so. Wow! The moralizing abilities of pop divas lead us to transcendence. Who would have expected that?! (-;