First things first: Don't choose your enterprise in a vacuum. You should always make sure that you have cards which play into the strategy/advantages of your corporation when you choose it. Unless your hand fits none of the corporations. With Terracor the approach is really simple: Get every card with earth-symbol and use your huge amount of money in the beginning for a head start. With interplanetary cinematics: You should have enough buildings in the start to use their metal resources for a head start and go for cheap events. Headstart in both cases means building your engine. Don't invest too much in points in the early game, but go for resource production and discounts.