I'm looking for a DEM of Russia projected in WGS84. Anyone have any ideas on where to look?
Depending on your region in Russia you can use, for 90m resolution: https://dwtkns.com/srtm/
From the readme-file:
The data distributed here are in ARC GRID, ARC ASCII and Geotiff format, in decimal degrees and datum WGS84. They are derived from the USGS/NASA SRTM data. CIAT have processed this data to provide seamless continuous topography surfaces. Areas with regions of no data in the original SRTM data have been filled using interpolation methods described by Reuter et al. (2007).
As of 2014 the SRTM DEM is released as a 1-arc second global digital elevation model which has a spatial resolution of about 30 meters. That can be downloaded here: https://earthexplorer.usgs.gov/
To use the interface check the guide here: https://gisgeography.com/usgs-earth-explorer-download-free-landsat-imagery/