If you're using google adwords, you could consider building a typical top 10 landing page like:
Top 10 Sex Cams Websites - Your Fantasy Awaits‎
or some sort of coupon landing page like
https://couponfollow.com/site/webcams.com.
If your budget is small, create a little blog about a specific niche and just write 300 words into every day. Let your mind flow, don't hold back and express yourself as you write. Within a month, you'll have about 10k words on your site, and GA will start telling you which articles it liked most. Do more of those, and keep going. 300 words a day, that's all ;)