Under my question, it is clearly stated
The question you're asking appears subjective and is likely to be closed
My apologies if my question is subjective to the point where it is closed. I didn't not mean to violate or break any rules.
I have a bunch of E-3 machines that can be utilized to mine but they do not have GPU's attached to them. They are 1U racked server machines.
Can someone be a sport and point me ion the right direction?
You can start with CPUMiner
AFAIK, currently Monero mining with Cryptonight algorithm is most profitable.