Below are a few of the starting strategies I have seen on Nomad, as well as some of their consequences. If you are playing Teuton, or another civ capable of decent Dark Age farming, this isn't a bad idea. Just pick one of your villagers in sight of some trees or other resource and drop the Town Center foundation. Your other villagers might uncover some gold or stone or even sheep as they cross the map to join the builder. You will have a slight headstart on your opponents, but you might struggle later for resources.
Luck means everything.
Send your villagers towards a central location, or even have them all go in different directions, looking for that perfect space to start your Town Center. If you look long enough, you might find berries, wood, gold and stone all within a few tiles from each other. It can also be fun to work together to build a super town with combined walls. Maybe you could even build a Wonder. The only disadvantages of this strategy are the inevitable delay, and the possibility you will be fighting over the same resources.