Write your federal representatives related to legislation in the U.S. Congress
Contact State Agencies such as Corrections, Public Defenders, Welfare etc.
Contact local assist groups such as churches, homeless shelters, food banks etc.
Use Google to search to find what you need.
Examples:
Corrections,OH
Parole Board,VA
Courts,CA
Public Defender,NY
Legislature,MA
Prison Ministries,AZ
Job Services,ME
Food Bank,NJ
Pre-release,DC
Resources for Non Profits: ( these sites match non-profits to corporate donations )