  Oscillating red-giant stars in binary systems are an ideal testbed for
investigating the structure and evolution of stars in the advanced phases of
evolution. With 83 known red giants in binary systems, of which only ~40 have
determined global seismic parameters and orbital parameters, the sample is
small compared to the numerous known oscillating stars. The detection of
red-giant binary systems is typically obtained from the signature of stellar
binarity in space photometry. The time base of such data biases the detection
towards systems with shorter periods and orbits of insufficient size to allow a
red giant to fully extend as it evolves up the red-giant branch. Consequently,
the sample shows an excess of H-shell burning giants while containing very few
stars in the He-core burning phase. From the ninth catalogue of spectroscopic
binary orbits (SB9), we identified candidate systems hosting a red-giant
primary component. Searching space photometry from the NASA missions Kepler,
K2, and TESS (Transiting Exoplanet Survey Satellite) as well as the BRITE
(BRIght Target Explorer) constellation mission, we find 99 systems, which were
previously unknown to host an oscillating giant component. The revised search
strategy allowed us to extend the range of orbital periods of systems hosting
oscillating giants up to 26000days. Such wide orbits allow a rich population of
He-core burning primaries, which are required for a complete view of stellar
evolution from binary studies. Tripling the size of the sample of known
oscillating red-giant stars in binary systems is an important step towards an
ensemble approach for seismology and tidal studies. While for non-eclipsing
binaries the inclination is unknown, such a seismically well-characterized
sample will be a treasure trove in combination with Gaia astrometric orbits for
binary~systems.
