Assembly language for ARM or RISC-V. It will provide a better appreciation for what's going on under the hood. You'll also see which high level languages fit

Assembly language for ARM or RISC-V. It will provide a better appreciation for what's going on under the hood. You'll also see which high level languages fit (or don't fit) this underlying fundamental model which may help cut through the marketing fluff from their various proponents and provide an unpleasant appreciation of the performance costs of popular programming paradigms.