Brother, that is really nice to see you here..! Actually, I have less then 500 visitors a day but I think that I have better traffic. The best way to get more visitor focus on updating your article and building relationship. Do not pay much attention to SEO since what we want is visitors.
SEO still is the most effective way to get daily 500 visitors daily if you need to have stable traffic. otherwise, you will need to promote on high traffic website to drive traffic to your website, but this way requires you spend a little money
To get 500+ likes Fast? You definitely need SEO and this includes Social Media Marketing. You need to combine this with forums, blog writing, and guest blogging. This is also what I do to promote my website.