While I was evaluating an AWS Redshift lab on qwikLABS, the lab directed me to connect to Redshift cluster by using JackDB which is a hosted service that can be used as a secure client software to connect to cluster in order to run queries . Thus, you are able to query your database by using a 3rd party client software.
If you are seeking a service like JackDB, all of the plans come with 14-days free trial.
Before adding a data source to JackDB dashboard, make sure that you have already configured the AWS security group which allows the incoming connection that is initiated from JackDB IP’s.
In addition to this, you can undoubtedly use it to connect to Azure SQL service as well. I have added a data source which is hosted on Azure SQL.