  We give a classification of fully supersymmetric chiral ${\cal N}=(8,0)$
AdS$_3$ vacua in general three-dimensional half-maximal gauged supergravities
coupled to matter. These theories exhibit a wealth of supersymmetric vacua with
background isometries given by the supergroups OSp$(8|2,\mathbb{R})$, F(4),
SU$(4|1,1)$, and OSp$(4^*|4)$, respectively. We identify the associated
embedding tensors and the structure of the associated gauge groups. We
furthermore compute the mass spectra around these vacua. As an off-spin we
include results for a number of ${\cal N}=(7,0)$ vacua with supergroups
OSp$(7|2,\mathbb{R})$ and G$(3)$, respectively. We also comment on their
possible higher-dimensional uplifts.
