who should hold the most EM

After getting some couple of lucky rolls and spending some money I got C6 nahida and R1 weapon. I want to build her with Raiden, Yae Miko and Bennet since I don't have cyno or Nilou.

So my question is how should I build my Nahida and Raiden? Who should have the 1000EM? Who should hold the gilded and deepwood?