Flickr - image and video hosting website
imgbox - Imgbox is a free image hosting service.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
23 hq - Keep all your photographs in one safe place.
PhotoPrism.app - PhotoPrism® is an AI-Powered Photos App for the Decentralized Web. It makes use of the latest technologies to tag and find pictures automatically without getting in your way. You can run it at home, on a private server, or in the cloud.
Photobucket - Photobucket offers image hosting and free photo and video sharing.