Wrecks and debris fields are the best spots for finding habitat-related blueprints, both inside the wreck and scattered on the seafloor around the wreck. As a bonus, if you scan a piece you've already acquired the blueprint for, you get two titanium for your efforts.

Yeah, that second base was cool. Neat location. I didn't show my fourth base, which I built in a singularly stunning location at 940m. But a screenshot would reveal too much and I thought it best that players discover it for themselves.

Animals flee this hell, the hardest stones cannot bear it for long. Only men endure