Bundle an add-on like Privacy Redirect
In response to #40300 (closed) and tpo/community/support#40013, a browser add-on such as Privacy Redirect that allows the user to configure automatic rewrites of URL hosts could reduce complaints from users to read, at least, popular websites that are blocking/censoring itself to Tor users.
From another front, we could educate those website admins about Tor and the filtering alternatives to totally blocking readership. Facebook and others run onion services, so there are many examples. Until the popular sites allow readers directly, their blocks will drive readers to go to other sites anyway, regardless of add-ons.