I have bought 100 pcs RX570 GPU. I dont know the RAM of the GPUs
The graphic cards are on the way. What should I mine ?

MSI Armor RX470 4GB and Asus Strix RX570 and RX570 mining edition

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I m mining cryptonightv7 with my current raphic cards (RX470, RX560 and GTX1050TI)
All of them is modded for cryptonightv7.

I have never used RX570 graphic cards. So I need to know which algorithm is more profitable.
Many people mines ethash but I prefer cryptonightv7 because ethash requires more power and blows hotter air.
I have never tried to mine wilkeccak. But i want to try it.