I have the standard web 2.0s,profile links and my own pbn hitting the product categories. My niche has new products coming out every few days that get announced a few weeks in advance, I get the urls up as soon as possible and hit those with expired web 2.0s.
Social media is trash for me, might work better for you in fashion though I guess.
I've only done e commerce so don't know the difference to blogs but links really don't seem as important to me as people make out here, most of the sites dominating my niche just have good websites,on page, old domains, loads of products, some trashy links from hobby guys blogs and a load of forum links.
Guess they could have a hidden pbn but highly doubt it