Sidekiq - Sidekiq is a simple, efficient framework for background job processing in Ruby
RabbitMQ - RabbitMQ is an open source message broker software.
Hangfire - An easy way to perform background processing in .NET and .NET Core applications.
Amazon SQS - Amazon Simple Queue Service is a fully managed message queuing service.
Resque - Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.
Apache Kafka - Apache Kafka is an open-source message broker project developed by the Apache Software Foundation written in Scala.