HN: unaffordable housing is among the top-5 problems facing my generation. Where are the career opportunities? What are the specific startups and companies work

HN: unaffordable housing is among the top-5 problems facing my generation. Where are the career opportunities? What are the specific startups and companies working to decrease the cost of housing who might hire me on? I understand much of this is an issue of policy (e.g. zoning), but that doesn't mean there aren't other avenues by which to attack the problem either.