Ontario's child and youth mental health, substance use health, and addictions sector is working to advance equity, diversity, inclusion, and anti-racism (EDIA-R) to create a more inclusive system that prioritizes anti-racism, enables identity-affirming care, and supports reconciliation. The Knowledge Institute on Child and Youth Mental Health and Addictions led a priority-setting activity to identify the tools and resources most needed by the sector. Through consultation with sector organizations, leaders, young people, and caregivers, we identified key priority topic categories (allyship, affirming and inclusive care for diverse gender and sexual identities, cultural worldviews and experiences, evaluation and research), focus populations (2SLGBTQI+ and young people and families with various identities), target audiences (service providers, sector organizations), and preferred resource formats (webinars, information sheets, storytelling, videos). This presentation shares our priority-setting approach and findings, which provide actionable guidance for future resource development to strengthen EDIA-R knowledge and capacity across the sector.