Volunteering: If your student is too young to get a job or your student needs to gain some basic job skills, encourage them to volunteer with an area not-for-profit. This will help your student build a resume, gain valuable work-life skills (showing up to work, taking instruction, customer service skills, etc) and start building their 'network' for referrals and future job references.
Job Search Tips for teens looking for jobs. This is not an exhaustive list of resources so do an online search for more: