Archetypes are widely used in information systems (IS) research to structure and interpret complex socio-technical phenomena. Despite their widespread use, however, archetype development often lacks methodological rigor. Many studies rely on ad hoc and situational configurations of methods, which limit comparability and transparency. To address this gap, we developed a taxonomy of 114 archetype development approaches identified through a systematic literature review in the IS domain. The taxonomy captures common contexts of use, objects of analysis, and procedures employed in archetype construction. The analysis reveals dominant and less common archetype development practices clarifying how archetypes are understood and constructed in IS and giving guidance for future studies. Beyond its theoretical contribution, the taxonomy also supports practical applications, such as constructing archetypes of IT services as a structured solution space. Overall, our taxonomy strengthens the methodological foundations of archetype development and provides reusable design knowledge for future studies in IS and related fields.