Discourse (not Discord chat, but the threaded forum software) is a much better choice than chat like Slack. All meetings and discussions/decisions should have a thread for them, even just a placeholder, and posts to document conclusions or next steps or rationale or whatever.
Have a company wiki.
Have anyone who can’t touch type learn to do so, on the clock, as priority 1, before anything else.
If you can’t type a lot and quickly, you will resort to speaking instead, which isn’t convenient to consume and isn’t indexable. Strongly discourage calls and synchronous communications in general.