Spot Instances are best suited for this scenario as they offer considerable cost savings compared to On-Demand pricing and are ideal for workloads with flexible start and stop times. Spot Instances can be interrupted by AWS with two minutes of notice when AWS needs the capacity back, making them less suitable for critical jobs that require uninterrupted execution. Reserved Instances and Savings Plans typically require a commitment to a specific amount of usage over one or three years and are not as suitable for intermittent and unpredictable workloads. Dedicates Hosts are more costly and are primarily used for licensing or regulatory compliance that necessitates workload isolation.