braw mezzanine workflow

Hello,
I have edited Bmpcc 4k footage in the premiere and I want to go to DaVinci resolve for coloring. As my editing has a lot of time remapping shots, I wil not export an xml. l will conform in resolve by self-contained video. I want to know the best mezzanine lossless codec to export the braw. I know that braw is 12-bit depth but I can't find a 4K 444 12-bit codec Any help?

What about DNxHR 444 12-bit?

When it's just edited material you can use BRAW.
When you want to convert use DNxHR(you need a powerfull computer) or Cineform Filmscan 3 for the highest quality.

DNxHR 4444 12 bit is existed in Avid but not in premiere

ProRes 4444 is supposed to be YUV 4:4:4 and equivalent of 12 bpc if you enable Maximum Bit Depth