I once did such a Google search when I first started working on my own materials to introduce idioms to my students. My idea was to introduce the concept of an idiom, and then have them learn some of the most common ones.
I never was able to find any two lists that agreed on 'most common', and ended up choosing my list based off of ones I personally used or commonly heard in my region, pulled from several such rankings. I threw out ones from such lists that I personally disputed as 'common'.
There are just too many and they're just too widely used to definitively rank them, short of some grad student devoting a few years of their thesis to pouring over multiple corpora and tracking frequency in a spreadsheet.
Even that wouldn't account for spoken usage, which I suspect comprises a larger percentage of total idiom usage than does written use. Although I probably utter idioms on a near-daily basis, I don't actually type them that much. I suppose that might be an issue of register, though.