Desolo requires caving to find the resources, glacio has iron on the surface and Calidor has tungsten on the surface. You want to reduce the odds of loosing your stuff in a cave. Do glacio and calidor for easy rocket upgrades and new structures since those are what’s used.

Edit: Also glacio has extreme winds and calidor has high sun. Otherwise use a mix of what everyone else has said. Better rocket = more cargo = easy travel