Artspark supports GLTF V2.0 including animations and cameras.
Tools:
GLB are binary single-file versions of GLTF, and are both easier to share and support loading from the web, use this site to convert GLTF to GLB: https://glb-packer.glitch.me/
View and edit GLTF files online: https://www.gltfeditor.com/
You can try to convert GLTF V1.0 to V2.0 using this site: https://blackthread.io/gltf-converter/