Chile. At least starting from the second decade onward Chilean growth significantly outpaced South America generally.

Taiwan. South Korea. Many others. Generally, right-wing governments almost by definition tend to be more free market oriented relative to leftist governments, while leftist governments tend to be more populist. You can get alot of graft and corruption either way, but the path to growth and out of poverty, if you can get there at all, is generally more right-wing, certainly at least for developing economies.

In poor countries, left-wing and right-wing, the rich hoard wealth, and they generally see the competition for wealth as a zero sum game. Leftism tends toward always seeing a zero-sum game, i.e. class struggle over a fixed pie. It's only certain strains of right-leaning governments that figure out you can grow the pie so rich and poor alike become wealthier. (Second-order inequality, i.e. growing wealth gap despite everybody becoming wealthier, is a thornier problem, but relatively recent in historical terms, and I'm not sure the old left/right dichotomy of political economy schools is useful here.)

But relative to historical exemplars, I'm not sure any advanced economy can truly be called leftist, rhetoric notwithstanding. Full throated leftist governments end up like Venezuela. New Zealand is hardly leftist by comparison.