You might try this free site at least they have free printable flyers to print and post up around to

Our sweet dog went missing in January. He has a smooth black and brown coat with white paws. He is Micro chipped. We have been searching everywhere and couldn't find him. He is shy and timid but very friendly (Not aggressive at all). If anyone has any information, please contact us at 630-930-3231. REWARD for any info that leads to finding him. Please help us find our baby!! https://m.facebook.com/photo.php?fbid=690652037658950&id=115100465214113&set=a.161373777253448.37335.115100465214113&source=46&refid=17
Chicago IL.

Posted on www.amagone.com