A question such as your's suggests that you are a beginner. Therefore I'd recommend you begin to understand "the business" by spending a few hours reading archived threads in the Domain Forum Library. [webmasterworld.com] There's a few classics in the Library about selling domains.
Also, you need to read the Domain Forum Charter [webmasterworld.com] and the WebmasterWorld TOS before posting again. Once you read the Charter you will understand my comment: We don't allow members to post "Who's the best?" or "What's the best?" or "Where's the best?" threads.
Why?
Because such posts are often the opening salvo - the cannon blast - in the next or newest round of promotional spamming in forums. Any forum. We just don't allow that to happen here. Mostly. ;-/
There are dozens of places to sell domains. Look in the Library. There's some rather sanguine advice on the business of finding buyers and selling domains.
