Auto Miner Cores

Guys how do I make or where do I find auto miners Cores?

You can buy them quite expensive on ECC Mining center on planet. (24k i think)
Better is to do POIs, I heard waterworld is easy to do never did that though. Go out explore planets, POIs, violet ones (names) are best, last time i returned with 120 cores.
Even common POIs usually have up to 5.
You can probably also make esome wanted on marketplace for them.

T^hank you Elfias