Before you can do any of these things you will need public campaign financing so that Congress actually reflects the will of the people. State government would need the same. A Constitutional Amendment could enforce this at all levels and guarantee the right to vote.
1 - Immediately raise the minimum wage to the level set in 1938, adjusted for inflation, about $11/hour. Over the next five years raise it to reflect real worker productivity of about $22/hour. Increase all government benefits to reflect the true cost living. Repeal all 'right to work' laws.
2 - Ramp up infrastructure spending until we reach full employment.
3 - Reinstate tariffs on anything we still make here and gradually reintroduce them on everything else.
4 - Make all higher education free and forgive all outstanding loans.
5 - Nationalize the Federal Reserve & seize all the 'too big to fail' banks. Establish a plan to replace all commercial banks with credit unions.
6 - Begin enforcing anti-trust laws. No national chain stores, period. No conglomerate companies. Make 80% of what Wall Street does illegal. Ban retirement money from being 'invested' in Wall Street Ponzi markets.
7 - Ban 'for profit' energy production. Put big Agri-business companies out of business. Introduce land reform and government support of small sustainable farming operations. Require farmers to join organized price contracting groups and put real teeth in them.
8 - A one time wealth tax on estates over a billion dollars. Reinstate inheritance taxes. Ban paying CEOs in stock, require boards to include workers.
There are a lot of other things to be done of course, but a real Congress that is elected by the people, not by lobbyists and big money donors could easily tackle these problems. When enough people know what the real questions are, then we can get real answers.