What are the Arch 'must have' accessibility packages?

[Linux for blind general discussion]

So, figured I'd reword that question. What are the 'must have' go to 
packages on an Arch system once it's up and going.

Here's what I'm deciing on. I'm putting a new HDD in, and installing 
Antergos with the Mate desktop. Now. Once that's done....

What are the must have packages I should get once the system's up and 
going...bearing in mind Mate comes with Orca and the Mate specific programs?

Jace