Not sure how many of you are on Facebook, but they have various marketplaces that can sell on. There is also a Lionel collectors group that people sell on too. There is probably a group for everything.
You can sell and meet in a public place or through the mail.
Train shows and flea markets might be a good outlet too depending on how much you have to sell.
EBay is no fun anymore but you can still reach the largest audience.
Of course, shipping costs are another topic.
