I use Stocksy mostly because the photographies are good and are at a reasonable price. I was sure it was already on Product Hunt but apparently not. If you are looking for a photo to use on your website (and don't want to have the same as anyone downloaded from Unsplash or Jaymantri) try Stocksy :)
Big fan of Stocksy. We've been using it for a while now at Aviary. Their photos feel real, never forced "stock" photos. The aesthetic of the photos feels current, too. My only wish is that they had *more* photos - but my understanding is that it's because they're so rigid about quality control - so it's probably a good thing :)
Product Hunt
Family Dinner Planner
Howler for Slack
Popcart