  By refining a recent result of Xie and Zhang, we prove the exponential
ergodicity under a weighted variation norm for singular SDEs with drift
containing a local integrable term and a coercive term. This result is then
extended to singular reflecting SDEs as well as singular McKean-Vlasov SDEs
with or without reflection. We also present the exponential ergodicity in the
relative entropy and (weighted) Wasserstein distances for reflecting
McKean-Vlasov SDEs under the dissipative and partially dissipative conditions
respectively. The main results are illustrated by non-symmetric singular
granular media equations.
