If you want to give a review for the gambling website, you need to give an honest review and you can share it on this forum and spreads it on many websites, not just on your website.
The things that can make your website bigger are by giving a true and honest review for your audience to know that you only want to provide information for your audience.
If you can do that, sooner or later, your website can become bigger and you will have many people who will subscribe to your site to get the latest news.
It is not easy to manage that as you need to search for many gambling sites out there and not just from here because we know that a new gambling site will release almost every day.