The selection of real time streaming solution which fulfills your system needs to have a good comparative study and analysis which will be helping you to get the right tool to be implemented for your real time stream processing. Below is the a brief comparison which will help you to select the right tools:
The above comparison is based on the available resources and explore the features so might have some differences but on high level this will be helping the architects and business owners to take right decision by comparing Confluent Cloud, Azure Confluent, Azure HD Insights Kafka, Apache Kafka, Apache Kafka (IaaS) and Azure EventHub.