I still cant help but think we need to be on metal planets. If your going to make any kind of alloy you are going to need metal as a raw material. I also think warmer planets over cold, mainly due to chemical reactions working better in heat. Of course until I find one its pure speculation. So far I've found one wreck, one outpost, about thee/four canister drops and five crashed probes. I really hope these things show as a POI rather than resource.