Sounds like you’re doing the right things to help your dad.
Direct tv has a talking
$1 Alexa works to control the TVs with Firestick
The iPhone is a limitless tool accessible with any level of vision. The iPod Touch is a much cheaper alternative to the iPhone if the phone part isn’t needed. I’d skip the Victor Reader Steam, it’s pricey and rather abstract especially compared to something as ubiquitous as the iPhone.
Talking Books programs are offered through each states’ library. Google STATE talking book program. It’s free and they mail the player, books and magazines. Once enrolled with the state library you can apply to
$1 to download books to smartphone or other approved device instead of waiting on the mail.
The AFB has a
$1 which is worth checking out. He’d likely benefit from services from a Certified Vision Rehabilitation Therapist (for daily living skills), and maybe a Certified Assistive Technology Instructional Specialist. IIRC he’s non-visual and non-ambulatory so O&M or low vision benefits would be slim.
AFB also has their
$1 site which has tons of great info
ETA:
Adjustment to blindness is a difficult process for most. If local resources are unavailable (or he’s unwilling to participate)
$1 has free correspondence courses including adjustment to vision loss and an Indpendent living series. The digital talking book player from the state library can be used to take most of the classes.