Exchange rate (and wire fee) to convert JP yen to dollars and send to the US?

I'm considering Wise, but to compare to the ease of simply wiring money, I'm wondering what the exchange rate would be at a Japanese bank to convert yen to US dollars, and then what the wire fee would be to send the dollars to the U.S. (Is there a place to find the current exchange rates that certain Japanese Banks offer?)

This would be for either 1,000,000 yen or 2,000,000 yen.

From what I'm reading, Sony Bank and Shinsei Bank seem to offer the best exchange rates, but I believe we'd want to use Mizuho Bank, as my wife already has an account there.