Who’s blind now!? Hehehe.
I personally don’t, because I still play mainstream games and have been lucky with accessibility improvements to a lot of the ones I’m interested in. The Last of Us parts I and II are incredibly accessible, for example.
Then again… I think A Hero’s Call is relatively well regarded, as something that’s also on Steam.
You could check out audiogames.net to get a broader selection, but be mindful that a lot of the discussions get quite unsavory. I don’t frequent it.
You can add captions to images inside text posts - those are used for alt text. You can't add alt text to image posts though.
Trust me, I would know.
Incidentally, they're automatically adding the subreddit and post title together for the image's alt text, which still doesn't include OP's name.