Here is some of my idea. The most important thing is to advertise. That's because you can't attract anyone unless you make them see that you have a website.Secondly, make it simple and easy to use . The theme and the color should fit to what you website is about.
Hi! I think the best way is to start sharing your website link to your friends and from there they then would share it to their network. Make use of social media platforms like facebook, twitter, instagram, pinterest and other sites that are visited by most daily. You can also do some paid ads as well.