Hello, and thank you for your interest in my website. First of all you can submit your domain for free in our classified marketplace here: https://adultdn.com/marketplace/
We can add your domain in our main page but to do that, you must have a logo for your domain and also redirect it to adultdn.com sale page. After a successful sale our fee will be only 5%, plus the fees of paypal. If you don't have a logo we can design a simple one for only 19$.