  The recent Gaia Focused Product Release contains radial velocity time-series
for more than 9,000 Gaia long-period photometric variables. Here we search for
binary systems with large radial velocity amplitudes to identify candidates
with massive, unseen companions. Eight targets have binary mass function
$f(M)>1\ M_\odot$, three of which are eclipsing binaries. The remaining five
show evidence of ellipsoidal modulations. We fit spectroscopic orbit models to
the Gaia radial velocities, and fit the spectral energy distributions of three
targets. For the two systems most likely to host dark companions, J0946 and
J1640, we use PHOEBE to fit the ASAS-SN light curves and Gaia radial
velocities. The derived companion masses are $>3 M_\odot$, but the high
Galactic dust extinctions towards these objects limit our ability to rule out
main sequence companions or subgiants hotter than the photometric primaries.
These systems are similar to other stellar-mass black hole impostors, notably
the Unicorn (V723 Mon) and the Giraffe (2M04123153$+$6738486). While it is
possible that J1640 and J0946 are similar examples of stripped giant star
binaries, high-resolution spectra can be used to determine the nature of their
companions.
