There is "Victoria 4 for Genesis 2 Female" which includes a auto fit clone.

As far as I know there are no autofit clones for Gen3 characters for Genesis 2, like there are for Genesis 1.

You might be able to autofit to Genesis 1 and then save it as a Genesis 1 clothing, which you could then auto fit to Genesis 2, but I am not sure that would really work and have never tried anything like that.