I have organized thousands of fantasy images into dozens of categories on my Pinterest page.
Most common categories are different types of NPCs, such as villagers, townfolk, innkeepers and adventurers.
Monsters abound as well, such as various types of goblinoids and giants, dragons and undead.
But there are also locations, buildings and interiors, floorplans, geomorphs, battlemaps and maps.
Not forgetting the items, game mastering tips and some interesting fantasy factoids. Have a look, maybe you’ll find inspiration!