Homeward Trust has many opportunities for volunteers to become involved with the Plan to End Homelessness: you can find more information here.
You could donate gently used furniture to the furniture bank – Find. Furnishing Hope
You could volunteer for the Welcome Home program – providing companionship to a newly housed person or family in your community. Here's some more information on Welcome Home.
Or you could lend your financial support to ending homelessness through United Way.