I have less experience about electricity and electronics but I am so sure that you can't use a pressing iron on a stabilizer, am I right? The grid power is not stable since 30hours ago, it fluctuates up and down and it's affecting my rig so I am thinking, is a stabilizer safe for a mining rig? I'm drawing 1000watt so what's the best stabilizer I can use if I can....
I think if you are referring to an UPS that has also built in function of stabilizing tension then Eaton is one of the best brands but unfortunately for that 1000 watt of your rig is extremely expensive,it costs like 1000 EUR if you want online UPS that soothes everything by itself or if you just want your rig to not suffer the hits from the fluctuating power grid then you can get and 1200 watt UPS of Eaton not online one at just 250 Eur and as I said it is one of the best brands.
In the factory where I work the main PLC(Programmable Logic Controller) the heart and core of our production environment is backed up by that 1000 Eur UPS with about 1400 watt power.