In addition to FecEx and Dominos, there’s other restaurants, Amazon, UPS, newer Chinese-owned final-mile carriers, Uber including Eats/Pets/Courier/etc., Lyft, Doordash, medical couriers, legal couriers, etc. etc. It’s tougher outside the cities, and it’s all kind of a neo-Victorian dystopia of poor wages and no support, but if what’s you actually want to do, “driving places cuz other people can’t or won’t” is a very doable job-description in the US. Just make sure you’re factoring in car expenses if you do the gig-based ones.