Since you're in Mass., you could call Nevins Farm, the MSPCA site in Methuen. They have a whole bunch of roosters up for adoption, and might consider taking on another. The birds seem to live a good life there. I HAVE a rooster I don't always want and certainly didn't sign on for, and still considered taking home one of theirs, he was so mellow and friendly! Their website is
http://www.mspca.org/adoption/methuen-nevins/. Very nice facility, with very dedicated staff.
As someone else mentioned, there is always the 4-H. I live in the town where the Middlesex County 4-H Fairgrounds is located. My kids have attended their aviculture meetings on and off since the idea of raising chickens became a possible reality for us - all brought on by a visit to that bloody fair! If you PM me, I can send you the contact info for the local aviculture leader, who can distribute your offer far and wide, to other area 4-H groups as well. They pass on adoption requests all the time, and your little guy might be a nice show opportunity for some lucky kid.
Last resort for me would be Craigslist. While you might get lucky with someone who is honestly not interested in eating him, there is no way to control what happens to him once he goes to his new home. So many of the local posts I've seen for people WANTING roosters just scream "I'm gonna eat them!" to me.
Best of luck re-homing him. I feel for you.