Yes, Elastic Search in the Servebolt Cloud is currently available for selected customers under beta program terms. Contact support if you're interested in getting your instance running. Elasticsearch is a paid add-on for any instances not running Magento 2.4.
External Elastic Cloud Services
It is also possible to use third party providers for Elastic Search. The important thing to keep in mind is that the hosting location should be in close proximity to your Bolt in the Servebolt Cloud.