[Question] alternative storage for circleci artifact storage?

[elreydetoda]

deliverables

• a location for holding long term copies of the generated files (listed below) from the CI build, which also isn't publicly accessible (might contain secrets).
  • variables.json - variables used in the build process
  • kali-template.json - template used by packer to build images
  • packer_build.log - debug information from packer

question
Currently I am using CircleCI artifacts to store the template that gets generated, but I just found out that apparently that goes away after 30 days. So, what should be a viable solution for cold storage (with the occasional access during debugging) to hold this, which isn't super expensive?

additional context
My mind initially goes to AWS s3, just because CircleCI has an orb to help with ease of use.