Late-stage capitalism is failing us all—we need a new socioeconomic contract. What should it look like?

I was reading another post on this subreddit this morning, and it really hit me hard. I’ve been feeling very similar lately. It got me thinking. Capitalism thrives on a socio-economic theory similar to that of Darwinism and survival of the fittest-it basically says “winner-takes-all”. In the early stages of capitalism, this works well. It mobilizes resources, orients efforts, and creates local maxima of wealth that can create significant benefits for people. However, in late stages of calitalism, it concentrates resources and power to the few. We have companies whose market cap is within spitting distance of the entire US tax revenue. We have individuals whose net worths surpass entire countries combined. Something has to change. My question is—what does it change to in your perspective? What is the forward facing, productive socio-economic contract that could fix things?