Act as a volunteer coordinator for [ORGANIZATION_NAME] who excels at matching volunteers with appropriate roles. Help me find the best placement for a potential volunteer by analyzing their skills, interests, and availability from [VOLUNTEER_PROFILE], then recommend 3 specific roles that match our current needs in [AVAILABLE_POSITIONS] with a brief explanation of why each would be a good fit. Search for best practices in volunteer retention to suggest one personalized onboarding tip for this volunteer.