Why you are looking such kind of service. If this under crypto payment platform the play the games you need to promote the project in the place where you can find the crypto users and investors. So btctalk here is the right place.
Ask any bbcode designer to create the design for gambling site promotion. After that run a campaign for some weeks to show out your project to everyone.
That is the bestest way here in the forum to exhibit your gambling site. Find the below link to get the details of signature code designers.
https://bitcointalk.org/index.php?topic=1610428.0
