Please take found pets to a local vet or Animal Services to have it scanned for a microchip.
Inquire about posting flyers at local pet supply stores, vet clinics, grocery stores, and neighborhood communication boards. Signage may not be placed in the public right-of-way or on any traffic sign.
Social media services such as Facebook and Nextdoor can also be helpful in locating a pet or pet owner.
Check or post on Craigslist.com, Petfinder.com, FidoFinder.com, TabbyTracker.com and local papers.
Contact your Home Owners Association. Many have an email database, and may be able to send the information out to your neighbors.