~たらいい / ~たらよい (should / would be good)

The deliberative pattern [verb-tara]+いい (or よい), 'it would be good to V / should V.' Often embedded with a question word as ~たらいいか for 'wondering whether to V' or 'figuring out what to V' — the standard way to ask for advice. いい is more colloquial; よい is slightly more formal/written. Functionally interchangeable.