macOS 10.12.6 Messages does not find contacts and more...

Have you checked that your iPhone is properly linked to the computer for text message forwarding

From the Mac, open the Messages app if you haven’t done so already .. also check Bluetooth is enabled on both devices.
From the iPhone, open Settings app, go to “Messages” and then go to “Text Message Forwarding”
From the iPhone Text Message settings, locate the name of the Mac you want to enable send/receive SMS Text Message support for and toggle the switch next to the Mac name to the ON position (in this example it’s called Yosemite Air)
You'll have to enter an authorisation code on the computer to approve.

>>> From the iPhone Text Message settings, locate the name of the Mac you want to enable send/receive SMS Text Message support for and toggle the switch next to the Mac name to the ON position (in this example it’s called Yosemite Air)

No such Mac name, however 'Messages can be sent between iPhone...and Mac...  OK, why not?

While typing this received this on Mac OS 10.12.  "Your Apple Id and phone number are now being used for iMessage on a new iPhone...etc." Its Ok, I agree - now what?

Issue still is can't see iMessages to iPhone on Mac(s).

Thanks, will have to find wired kybd to control macs

Seems as none of the 6 bluetooth devices, including Mac are not paired. Attempt to pair iPhone --> Mac very briefly (less than 1 sec) displays Verification Code - will pursue.