If you haven’t done so already, please post on Nextdoor for your surrounding neighborhoods. Put up flyers all around your area and beyond. File a lost report with the MCACC at 602-506-7387 Check the shelters and Craigslist. Contact the azHARTT.org for help. They are an amazing, experienced group of volunteers that will do everything possible to help you find him. Fill out their online request form and they will contact you. Shared.
Apparently this lost dog is female. The post didn’t say but the finder of the male lab (that post didn’t give gender either) I posted above told me that this lost dog is female.