My first suggestion is to share with the forum your son’s trade and training, as every craft, trade, skill, or profession will have its distinctive obstacles and opportunities. There may be those here who have a background in your son’s field and could offer very relevant advice.
Some generic suggestions might be:
1. If the trade he is trained in has a union that represents it he might look into their apprenticeship program. As he already has certification he will have a head start on the other apprentices and will come out of the program with verifiable experience. In SE WA where I live the apprentice programs pay way above minimum wage, which in WA is $16.28 per hour.
2. I don’t know if he went to a public Vo-tech school (such as at a community college) or a for profit private one. The public training programs typically will have guidance counselors / career coaches and a “jobs board”, he should look into these programs. Employers often look to trade schools for workers and may have an apprenticeship program where one can get experience.
3. In an internet search engine type “Worksource” and the name of your state. Most, if not all, states have employment offices which increasingly are operating under a common “Worksource” banner. These have extensive and searchable “Help Wanted” and “Looking for Work” boards, and one can post their resume for potential employers to review. They often offer many other services, such as helping someone write a cover letter and resume that gets noticed and gets results, doing mock interviews, and providing other practical tips.
I will include your son on my prayer list. I must also say that I was absolutely SHOCKED at replies #1 and #2 to your post (may have been from the same person, I can almost guess who it is). Someone who can’t compose a grammatically correct English sentence and then makes insulting and random assumptions about someone they know nothing about is not one to take advice from.
Again, I pray that things will come together for your son.