There's already an OB fork ^[Mobazha], but since I don't have any experience with it, I can't vouch!
^{- They did mention "a slight change in their domain extension", but looks like they're still using the original one (.com).}

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@Permonik
Alternatively, you can also use the following subreddit page: BitMarket
^{- It doesn't have a good amount of traffic as it used to, but it might come in handy.}