You can get a whole home surge protector that installs off the main panel. They do take up 2 breaker spots just like any other 220V circuit.
They run about 150$ and are pretty good for piece of mind.
This is what I used. Other options seem too costly. These whole home surge suppressors protect the whole panel.
In relation to the post from Shazam: I used to own an IT company and I have replaced many motherboards that took a power surge that went through the PSU and burnt the motherboard - and in some cases even the CPU, RAM, and HD. Also replaced many motherboards and other internals where the power surge came through the modem or NIC. I agree that a lot of times, the PSU, modem, or NIC took the hit and that's where the damage ended. But I saw too many for me to justify not putting a surge suppressor on the whole power panel - as well as a good quality surge suppressor (like APC or other) that surge suppresses the network connection leading to the switch that feeds my miners as well as from the ISP connection to my router. $200 to protect thousands in miner equipment is not a bad investment.