As I said in another topic, we have weeks (and in the case of Vale VI, months) before any long terme effects are done to the planets.
We don’t even know if by this time the stars will be still dimmed or not.
The “simplest” way to support the local populations is to help them through humanitarian help such as the one organized by UNF-A or a petition for concord to deploy barren-class command centers.
They should be able to provide shelter for some time.