This article examines the complexities of integrating young adult migrants from non-EU countries into European contexts, advocating for a shift toward inclusive, locally informed, and reciprocal integration processes. It critiques state-centric, assimilationist frameworks that emphasize an imagined national identity and Western norms of youth transitions, neglecting local nuances and diverse migrant experiences. Through findings from a European Delphi study engaging 114 stakeholders from seven European countries, including migrant youth organisations, also represented by stakeholders with a migration background, the study highlights the need for a dynamic, process-oriented approach to integration. This approach prioritizes mutual adjustments between migrants and host communities, emphasizing flexibility, responsiveness, and local relevance. The study underscores the role of local actors and contexts in shaping integration policies, contrasting inclusivity at the local level with exclusionary national frameworks. Stakeholders emphasized the harmful impact of state-imposed policies and the importance of youth groups and migrant organizations as active contributors to policy development. The research proposes tailored solutions to address vulnerabilities and calls for long-term, multi-level governance that values the lived experiences of young migrants. Utilizing a two-stage Delphi methodology, the study facilitated anonymous stakeholder dialogue across seven European countries, yielding consensus on key integration challenges and innovative policy recommendations. By integrating diverse perspectives and recognizing young migrants as co-creators of their futures, this article advances debates on migration and integration, advocating for policies that are equitable, inclusive, and grounded in local realities.