  Magnetic massive and intermediate-mass stars constitute a separate population
whose properties are still not fully understood. Increasing the sample of known
objects of this type would help answer fundamental questions regarding the
origins and characteristics of their magnetic fields. The MOBSTER Collaboration
seeks to identify candidate magnetic A, B and O stars and explore the incidence
and origins of photometric rotational modulation using high-precision
photometry from the Transiting Exoplanet Survey Satellite (\textit{TESS})
mission. In this contribution, we present an overview of our methods and
planned targeted spectropolarimetric follow-up surveys.
