This app was mentioned in 1 comment, with an average of 5.00 upvotes
I'm pretty sure this is supposed to work or used to work. I tried a bunch of different ways and nothing does it. I made sure I had full name, phonetic name, nickname, and home address specified. I can say "ok google what is 'john smith's' address" and it will pull up the contact card correctly, but I can't say "ok google navigate to 'john smith'" or any variation.
I've used this little app in the past to create a direct shortcut to my most navigated to contacts and placed them all in a home screen folder - https://play.google.com/store/apps/details?id=com.antsapps.directnavshortcut . Not the same but pretty fast.