Roosters are hard to rehome if you're not willing to let them be eaten.
I know had ALL my roosters died - I'd want a new "nice" hand-raised rooster that could make babies if I felt like incubating or have a brooder sit on them - but I'd almost prefer to raise them myself, just to make sure they actually liked *me* LOL
However, you just need the right person who maybe is done with chickens for the year, and lost all their roosters for whatever reason. I would definitely put an add out - then just be honest with yourself when the time comes on the reality of the situation if you can justify keeping it, if you can't find someone who won't eat him.
I know had ALL my roosters died - I'd want a new "nice" hand-raised rooster that could make babies if I felt like incubating or have a brooder sit on them - but I'd almost prefer to raise them myself, just to make sure they actually liked *me* LOL
However, you just need the right person who maybe is done with chickens for the year, and lost all their roosters for whatever reason. I would definitely put an add out - then just be honest with yourself when the time comes on the reality of the situation if you can justify keeping it, if you can't find someone who won't eat him.