Earning sats, ... but not tips / rewards / etc., but actual ... earn in bitcoin some chunk of your income that you use for spending.

How to get someone agnostic about bitcoin to earn in bitcoin? Essentially, hire them. What businesses hire? Essentially all of them. But some are the lowest hanging fruit. A business that employs many who are guest workers, ... that would be a good company to see offer to pay (partial or full) in bitcoin.

How to persuade this company to add this capability? Solve that and you have a tool to drive adoption.