Best case scenario is for him to check in to a behavioural hospital for a month to learn coping and living skills.
Otherwise, can you get him to groups that discuss coping and living skills? A living skill could be as simple as going to the grocery store to buy groceries. It also can serve as a coping skill.
Online you can google coping and living skills with exercises. Process groups combined with cognitive behaviour groups is best I believe.
Local mental health facilities in your county charge reduced rates for therapists and psychologists based on income, maybe even his income. Groups are normally free.