Neewer Vertical Battery Grip MK-A7II works on the new A7rII.

[shoplink 41021 ebay][/shoplink]

Meike confirmed the MK-A7II grip works on the A7rII too. You get at Amazon (“Neewer” branded here) and [shoplink 41021 ebay]eBay (as “Meike” here)[/shoplink].