There should be a “power state” setting in BIOS to turn back on after a power outage. There are also power button remotes that could work, depending on distanc

There should be a “power state” setting in BIOS to turn back on after a power outage. There are also power button remotes that could work, depending on distance: https://www.amazon.com/dp/B01MQUANS8/ https://www.amazon.com/dp/B01MQUANS8/