This appeared on astro-ph this evening:
https://arxiv.org/abs/2304.06749
A catalogue of cataclysmic variables from 20 years of the Sloan Digital Sky Survey with new classifications, periods, trends and oddities
...which may help VSX compilers put thing in order, with links to spectra etc. Also I notice some objects the authors show to be non-cv types. The paper includes a nice figure with a breakdown of the various cv subtypes, which ought to reduce confusion for many of us. The sample spectra together with lightcurves throughout the paper are very interesting as well.
\Brian