>>3289429there's no way other than getting premium to work around the search by popularity but who knows maybe someone could help
some good sites to use along with pixiv would also be safebooru and then some artist or art sharing twitter accounts (be sure to use iqdb or find the source file since twitter compresses images)
if using dan/safebooru then look into setting up an account for favorites and a you can even set up a custom css style for the site.
