  Binary systems containing a compact object may exhibit periodic brightening
episodes due to gravitational lensing as the compact object transits the
companion star. Such ``self-lensing'' signatures have been detected before for
white dwarf binaries. We attempt to use these signatures to identify detached
stellar-mass neutron star and black hole binaries using data from the Zwicky
Transient Facility (ZTF). We present a systematic search for self-lensing
signals in Galactic binaries from a subset of high-cadence ZTF data taken in
2018. We identify 12 plausible candidates from the search, although because
each candidate is observed to only brighten once, other origins such as stellar
flares are more likely. We discuss prospects for more comprehensive future
searches of the ZTF data.
