  We present the results from our ongoing spectroscopic survey targeting low
mass white dwarf binaries, focusing on the southern sky. We used a Gaia DR2 and
eDR3 based selection and identified 28 new binaries, including 19 new extremely
low mass white dwarfs, one short period, likely eclipsing, DABZ, and two
potential LISA binaries. We present orbital and atmospheric parameters for each
new binary based on our spectroscopic follow-up.
  Four of our new binaries show periodic photometric variability in the TESS
2-minute cadence data, including one new eclipsing double-lined spectroscopic
binary. Three others show periodic photometric variability in ZTF, including
one new eclipsing binary. We provide estimates for the inclinations and scaled
component radii for these ZTF variables, based on light curve modeling to our
high-speed photometric follow-up observations.
  Our observations have increased the sample of ELM Survey binaries identified
in the southern sky to 41, an increase of 64%. Future time domain surveys, such
as BlackGEM and the Vera C. Rubin Observatory Legacy Survey of Space and Time,
will efficiently identify the photometric variables in the southern sky and
significantly increase the population of southern sky low mass white dwarf
binaries, leading to a more complete all-sky population of these systems.
