While I don’t have any experience with the boards you’ve mentioned I am wondering if things like smart plug or power relay will work for you? You can control them through MAAS Webhook power driver.
NVIDIA Jetson devices are currently not supported by MAAS because they use custom Ubuntu images and the regular live Ubuntu Server image for Arm64 doesn’t work on Jetson devices. See Are Jetson Tegra images compatible with MAAS?