I'm interested in this, though I'm not an expert in marketing, but I might be able to help with some technical stuff.
Can you tell us a little bit more about your website and your operation overview?
Like where's your license registered, what's your target region, and what's the main attractions of your website?

I have seen many people trying to set up their own sportsbook, but their sportsbooks have not much difference to other mainstream sportsbooks so it's hard to attract players.
Knowing the core and goal of your sportsbook will be easier for marketing guys to promote it.