try reaching out for the admins of gambling sites here cause they may be interested in your site
personally I don't know if it's worth it or not and if you are taking micro investments or only big investments
Why ? Why would they want one more competition to the already existing sites ? I mean would you invest in a website that is in a competition to take your money away ? I don't understand the co-relation.
if you really believe in your site and work then also launching an ICO may help for raising a bankroll , I guess ICO is your best shot actually
but still you need to convince investors that your site actually worth the investments
Let's have it,it is not happening.