Hi. Is there any guidance for using projects and deploying to use aws batch instead of ECS.

I’m not familiar with AWS batch, however, GCP has a similar service and I think the caveat is that startup times may be much longer. If that’s acceptable to you, then I think batch could work for your use case. You might need to implement a custom worker to support that, and there’s a guide for doing that here: https://docs.prefect.io/2.10.16/guides/deployment/developing-a-new-worker-type/