On this page I’m gathering links to resources that are useful if you want 3D printed D&D miniatures.
Hobgoblin 3D Review: 3D Models of Dungeon scenery
Hobgoblin 3D: 3D Models you can print. Some are free, some they charge for.
Hero Forge: Create custom characters which they 3D print for you.
DragonLock: 28mm scale Dungeon Gaming Terrain
Yeggi: 3D Printable Model Search Engine