This concluding chapter explores the transformative potential of social movement organizations across Europe, particularly in response to intersecting crises. By analysing ten cities in Denmark, Germany, Italy, Slovenia, and Switzerland, the authors of this book demonstrate how movements reframe and repoliticize solidarity, emphasizing its role as a relational and contentious practice. The book highlights how organizations working on housing, migrant rights, and care work challenge neoliberal policies, resist far-right backlashes, and create new discourses and practices of solidarity. These movements critique the commodification of social goods, advocate for systemic changes, and promote collective organizing and mutual aid. Through frame analysis, this book reveals how these groups not only diagnose social problems but also propose radical alternatives, shaping new political imaginaries and collective identities. The conclusion underscores the importance of solidarity as both a practice of mutual aid and a tool for challenging exclusionary policies and neoliberal governance, ultimately contributing to a more just and inclusive society.