Early-time solutions to the Hubble tensions currently appear to be our best shot at finding a theoretical model that would reconcile the current measurements from the local distance ladder and the CMB while remaining in agreement with other late-time probes. In this talk I focus on those solutions that modify the redshift of recombination, such as through early variations of fundamental constants, quickly review the mechanism of these kinds of solutions, and discuss their viability with regard to current data. While the parameter space is continually closing in on these kinds of models, a shift of the electron mass in the early universe stubbornly remains a surprisingly good candidate model to explain the Hubble tension. We even find some evidence that current BAO data from DESI might favor such a model.