Prosperous societies are prosperous because they have higher levels of inclusion. Policies that ensure inclusion would include addressing inequality growth and unemployment.

My aim would be to establish fairness, not just for the 99%, but for the 100%. This can be achieved by reining-in economic privileges. One can't expect anyone to accept something that's less than fair and it's unreasonable to expect to be treated in a way that's more than fair. Fair's fair!

Georgism - begin replacing taxes like income tax, corporate tax and sales tax with a land value tax. This would remove economic distortions and inefficiencies as well as directly address inequality growth.
MMT - implement a job guarantee program and cut off corporate welfare (no more selling government securities or paying interest on balances held at the central bank).
Modern debt jubilee - deleverage private sector debt so as to avoid another financial crisis. If the land value tax is sufficiently high to cause land prices to drop, then the debt jubilee would mitigate the unfairness.
Deficit spending - money spent by the government is money earned by non-government, so a government deficit is a non-government surplus. This would reduce the need for a job guarantee program, so those workers could then transition more quickly into jobs in the private sector.