For applications with variable traffic and occasional spikes, a balance between compute, memory, and networking is often required. General Purpose instance families, such as the T3 or M5, are designed for such use cases, offering a good balance of resources and the ability to burst in performance, which allows them to handle occasional spikes efficiently. The Compute Optimized family is better for compute-intensive applications, and Memory Optimized instances cater to workloads that require large amounts of memory. Accelerated Computing instances are specialized for workloads that need hardware acceleration provided by GPU or FPGA.