Looking for a pointer: Accessibility on Linux; discussion group

Basically all my friends are visually impaired and with the imending end of win10, the recent "hype" on Youtube about switching to Linux and whatnot, I have had my hands full answering questions, explaining things, and at times even recommending a variety of methods to "just try it out".

But, the biggest of them was:

• Do I get a screen magnifier?
• What about the screen reader situation – is Orca any good?
  • Does Orca work on Wayland or is it X11 bound?
• Can I use global keyboard shortcuts to save myself some mousing around?

Well, I have a spare old MacBook here, and soon I will have a SteamOS maschine (so, Arch on SystemD/KDE/GameScope in Wayland via AMDGPU) so I will be experimenting a lot. However, I would love to provide good answers to my friends and on the other side find the people I'd have to talk to to figure out where to donate or set up bounties to get certain projects going and rolling. I hope that by going this route, I can possibly find some capable hands to implement – or perhaps fix – the accessibility situation on Linux.

So if you happen to know any Subreddit, forum, mailing list or alike – please drop them here, I'd love to check them out and see what I can do for both my friends and myself also. I mean, I am grasping at win10 as much as I can too lol. Hopefuly I can switch some day also. But I am heavily reliant on screen magnification and both keyboard and mouse shortcuts to work them quickly. Nobody likes waiting, and imagine having to tap something like meta++ 20 times just to zoom in – its just too slow lol.

Thank you in advance and kind regards!