Any coin shop should make you an offer. Ebay is a popular method and might realize the highest price if the coins are reasonably high quality. Local coin shows are a good place to sell too.
Hi Charlie. Once you have 10 posts on cointalk, you can use the 'Open' forum all the way at the bottom on the home page. You can list what you have for sale once a week. Can't think of many better places than right here. :thumb:
Look up coin shows in your area. Just go to Google and type in coin shows and then your state or country whatever that is. If you live near other places that may have coin shows, also type in those. At coin shows almost any dealer will buy your coins. However, just as with coin stores they will have to low ball you on prices since they work on a profit margin to make money themselves. Then of course there is numerous sites like ebay. Of course most coin forums have a buy/sell/trade coins section. For Example the PCGS web site has one and they have well over 20,000 members. But remember that almost any coin forum web site has a minimum amount of posts to be able to sell coins. However, that is usually easy if you just spend a few hours on them.
OOopps. Forgot. Some people take coins to flea markets and sell them there. Or some have garage/yard/estate sales and sell coins that way.