Dropbox - Online Sync and File Sharing
Flickr - image and video hosting website
Google Drive - Access and sync your files anywhere
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Nextcloud - With Nextcloud enterprises host their own secure cloud solution for storage, collaboration & communication from any device, anywhere.
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.