Which dataset management sites are known for task routing, QA features, and exportable labeled datasets?

Several dataset management / labeling platforms are known for task routing, QA workflows, and exportable labeled datasets. Commonly cited options include:

• Labelbox — task assignment/routing, review queues, QA tools, and export in multiple formats.
• SuperAnnotate — strong project/task management, review and QA workflows, exportable annotations.
• Scale AI (Scale Studio / Data Engine) — task routing, human QA, and dataset export/delivery.
• Prodigy — lightweight active-learning workflow with exportable annotations, though less of a full team-routing system.
• Dataloop — task pipelines, review/QA, and exporting labeled data.
• V7 Darwin — annotation workflows, QA/review, and exports.
• SageMaker Ground Truth — task routing to annotators, QA options, and labeled dataset export in AWS formats.

If you want, I can also narrow this down by:

1. open-source vs commercial,
2. image/text/audio/video support, or
3. best fit for small teams vs enterprise.