There’s actually a small amount of independent publishing companies who have emerged that either publish badthink or out of print books that were neglected for political reasons. Some even will print on demand samizdat copies of books that still have copyright claims and are being suppressed by the holder.
One example is some random guy on Twitter published the memoirs of Pytor Wrangel, the general of the Anti-Bolshevik White Army during the Russian Civil War. Prior to that, the last English printing was done in the 1950s by a University Press and cost over $900. Now you can buy it on Amazon for around $15.
Just ordered this. Looks very good! Its a miracle it got republished in these days.