Since it is crypto gambling website, I suggest that you consider advertising it on this very forum because most of the cryptocurrency gamblers can be found on this forum. You can start a signature campaign or contact the Administrator of the forum to help with that.
In case that steffson wants to advertise through the forum, this is where he needs to bid for a slot
https://bitcointalk.org/index.php?topic=2716553.0 and as for signature campaigns make sure that he'll get a signature campaign manager to start out his advertisement throughout the entire forum so it will make his ad more visible to the readers and visitors of btctalk.