New Zealand (South Island)
Seth Kenlon is a UNIX geek, free culture advocate, independent multimedia artist, and D&D nerd. He has worked in the film and computing industry, often at the same time. He is one of the maintainers of the Slackware-based multimedia production project Slackermedia.
Authored Comments
Ubuntu is a great option, because it's easy to use and stays up-to-date with the latest libraries (within reason).
Ultimately, I believe the best Linux is the one that works for you. I mean that pretty literally: load a distribution onto your computer -- if everything works as expected, go with it. If not, try a different one. You probably have already heard of the popular ones to try: Ubuntu, Fedora, Elementary, Pop_OS, Debian.
That will largely depend on how Apple integrates VoiceOver with its terminal applications, and how Apple integrates VoiceOver with XQuartz (or whatever X11 support library they're using these days). If Apple has VoiceOver set to read both the input and output of a terminal application, then any new command you install through MacPorts ought to be pretty usable. And if Apple made it so VoiceOver reads stuff running in an X11 graphics server, then it should be able to describe even GUI apps.
I'd be interested in hearing the results, should you try this out.
It's a real pity that Apple hasn't released its advancements in accessibility as open source technology. It seems that their work toward better accessibility could benefit everyone, and it's a real shame to have it locked behind a price tag.