Where to peddle nearly 2M heavily engaged higher income shoppers age 18-34?

We don't belong to an ad network because of the exclusivity issues and ...well...crappy ads that aren't quite in line with the income level of our demographics. We have a very established and consistant social shopping site. We'd like to simply find an entertainment company or two that would like to buy 3M or more impressions per month that they can use for their content as it is produced. Any ideas of who might be interested/who I should contact? Thanks.