An basic and bad written Module for Magento2 to support Queues
add Cotya\Queue\Model\QueueService $queueService, to your constructor.
add an element to a queue by Name $this->queueService->add('element 1', 'test-queue');
fetch a single element from a queue by Name $this->queueService->getSingleElement('test-queue');
The value and queueName can be an arbitary string. Fetching an element removes it from queue.