Grand reef, deep, lots of harvestable stuff hopefully

Lost river

The void

Jellyshroom cave has lots of magnetite and other good stuff.

Crash zone

I'd do the lost river!! I mean...it is a hostile biome, but there are good materials down there!!

Lost river, near one of the thermal vents to ensure constant power. I did build a mini base at the entrance to the jellyshroom cave, high enough to rely on solar power

Tree cove

Jellyshroom caves has the super hot 😱😱 I MEAN COOL COOL crabsnake and the light from the jellyshrooms are a vibe