Word-of-mouth leads in Honolulu - what worked for you?

Two small Honolulu employers told me they are hiring but have not posted yet. I am in Honolulu, in case local advice matters. They prefer people who can start within a couple of weeks. Does anyone have similar leads?

Small employers often hire on recommendation. Ask neighbours, former co-workers and your library.

Visiting in person worked for a trades job. For office jobs, email was better.