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The Ruby world at least seems to have settled on relatively simple Redis backed queues, where you directly request the job to be executed rather than use a more generic message broker.

For sure there are more complex scenarios, but if you're just getting started you'll be well served by just reading the docs for sidekiq.

Unless you're building something with very specific requirements just use Sidekiq [0]. It's easy to install and performs very well.

0 - https://github.com/mperham/sidekiq

Not a direct answer, but Rails now includes ActiveJob which abstracts over the various jobs are available and is nice and simple to set up.