I'll say it as much as I can. Tax business, on profit not individuals on their salary. Salary comes from a business paying you, they have accountants, they can pay taxes.
And when you tax profits, they have the incentive to reinvest in the company, either by hiring more people, or building things, or spending money on research. Instead of giving record profits to shareholders.
Of course you can have small businesses below certain employee numbers exempt or something like that to help new businesses.
This of course means you can't hand out "government help" by just taking less taxes from people already making money, and have to install give real help to people in need irrespective of their salary.
And of course there might be some details that should be added to make it good.