You can use Azure Arc[1] to run Citus on AWS EKS without having to manage everything yourself. Even though it's not quite as managed as Citus on Azure, it's still a quite lot easier than setting up a whole production cluster yourself.

1: https://docs.microsoft.com/en-us/azure/azure-arc/data/what-i...

Interestingly, the only hosted option was originally on AWS. The company was purchased by MS and it was deprecated.