The old model is working fine it’s just that Google and Meta are using illegally acquired monopoly power to take all the money for themselves.
Before Craigslist, local newspapers in the USA got the majority of their ad revenues from ripping off the public for classified ads. It used to cost $50 to list your used car, or advertise your garage sale. If you are a fan of the "disruption" that Silicon Valley people are always yakking about, this is the gold standard.