picinfinity - Picinfinity is an image retaining/proxy site.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Flickr - image and video hosting website
Libris - Libris is an asset management for photos and videos.
PixelFed - PixelFed is a federated image sharing platform, powered by the ActivityPub protocol.
500px - Connect, get inspired, and grow your skills.