I would also keep it local unless you are willing to ship. Often times there won't be any members within convenient driving distance on forums like this or global facebook groups. You can also check for local swaps where you might be able to sell or trade.
I've sold peafowl on Craigslist, my personal Facebook business page, and on other Facebook groups that are state specific. For example, I'm in Idaho, I posted my peachicks for sale in Idaho Fancy Chickens page.