You can view all gambling sites listed below links I have given for your reference. They are all having a good record here in the forum and someone wearing signature ads.
https://bitcointalk.org/index.php?topic=4832500.0
https://bitcointalk.org/index.php?topic=2097255.0
https://bitcointalk.org/index.php?topic=5040737.0
These links I provided are probably enough for you to review gambling sites.