Understand that, but it should check the availability of spot resources before creating the driver that often is created on demand. This way there is more possibility to get an instance.

Also, it could check here:

on JSON https://spot-bid-advisor.s3.amazonaws.com/spot-advisor-data.json

or

https://aws.amazon.com/ec2/spot/instance-advisor/

or

https://docs.aws.amazon.com/cli/latest/reference/ec2/describe-instance-type-offerings.html

or

https://instances.vantage.sh/?selected=r5ad.16xlarge

I think this could make the "auto" option a lot smarter.

Thanks!