In the South African cities of Durban and Cape Town, many migrants of various backgrounds work in and run small, often informal businesses and shops in diverse market spaces. However, they face multiple kinds of precarity, which include obstacles to obtaining documentation, experiences with xenophobic attacks, and uncertainty about their future. This chapter draws from qualitative and ethnographic research with migrant men from South Asia (Pakistan and Bangladesh) and Sub-Saharan Africa (Burundi, Malawi, and the Democratic Republic of Congo) in the market spaces of Cape Town and Durban. Building on recent studies on masculinities, migration and care, we share examples of how migrant men work, protect and support one another in times of need, as well as fulfill local and transnational social obligations with and beyond kin networks. We refer to everyday solidaristic actions as care practices, which include offering advice, accompanying newcomers to access Home Affairs, networking to find jobs, and spreading awareness of criminal or xenophobic threats. We also discuss potentially constraining aspects of these communities of care, as migrants are at times “confined” within such communities in the name of care, for example, in small jobs they cannot leave, or in social or financial debt to others. Overall, this paper examines how these informal communities of care amongst migrant men are sustained or challenged.