Income tax is always and everywhere progressive and consumption taxes are always and everywhere regressive. It's just a question of how you calibrate but you can't get away from this by design.
Personally I prefer high and uniform consumption taxes, something like VAT of 18% on absolutely everything. Rich people buy food too and they don't need the subsidy. People on low incomes should be supported via, well, income supports. Doing it via low VAT is not efficient as rich people like me get to benefit too and we don't need it.