This paper explores the emergence and practice of raqis - religious specialists who treat individuals believed to be afflicted by jinns - within Muslim communities in Switzerland and Eastern Europe. Despite the differing regional settings, the two case studies produce remarkable parallels: in both settings, raqis are met with suspicion by established Muslim authorities, and their practice is often dismissed as "folk Islam", a "money‐making scheme", or even delegitimized as "un‐Islamic". Thus, raqis often struggle to gain access to established Islamic spaces - such as mosques - to perform their rituals. Despite this marginalization, many Muslims in Switzerland and Eastern Europe turn to raqis for assistance. Much like jinns, raqis themselves are perceived with ambivalence - sometimes as "bad", sometimes as "good" - yet they always occupy a liminal position that is met with caution within religious diversity. Based on a combination of biographical and ethnographic research in Switzerland and Eastern Europe, this paper analyzes the trajectories of becoming and being a raqi. It illustrates how raqis navigate the field of Islamic authority figures and Muslim communities from a marginalized position, how they strive to legitimize their practices by linking them to universal Islamic discourses, and how they renegotiate Muslim spaces, religious practices, and Islamic authority through their work. Operating on the periphery of established religious structures, this paper argues that raqis can be conceptualized as a type of "religious entrepreneurs", freelance actors who are actively reshaping Islamic diversity and religious landscapes. By challenging traditional boundaries and redefining legitimacy within both established and emergent Muslim contexts, the engagement with raqis offers valuable insights into processes of space‐making, boundary work, questions of legitimacy and agency, and the negotiation of religious authority.