Using Snowplow’s event pipeline and trackers, you can implement this capability with granular, first‑party data and real‑time processing. 

Azure Event Hubs:

Managed service with automatic scaling and integrated with Azure ecosystem.

Ideal for event ingestion at high throughput and low latency.

Integrated with Azure Stream Analytics and other Azure services.

Apache Kafka:

Open-source distributed streaming platform, can be self-hosted or managed (via Confluent Cloud).

Supports complex event streaming use cases and provides more control over configurations.

Kafka is better for scenarios where data retention, complex stream processing, and topic-based message queues are necessary.