In spite of the fact that the idea of employing message brokers may be a dream for most business needs, the actual implementation of our own message broker might turn out to be a nightmare. Fortunately, the market nowadays offers us a few powerful open source solutions. Some of the most popular message brokers and messaging platforms include RabbitMQ, Apache Kafka, Apache Pulsar, Apache RocketMQ, NATS, NSQ, and so on.
We may find comparisons of the message brokers by following the following links: Apache RocketMQ versus Apache Kafka at https://rocketmq.apache.org/docs/motivation/#rocketmq-vs-activemq-vs-kafka; RabbitMQ versus Kafka versus NSQ at https://stackshare.io/stackups/kafka-vs-nsq-vs-rabbitmq; and Apache Pulsar versus Apache Kafka at https://streaml.io/blog/pulsar-streaming-queuing.