Short quippy answer? Unionize your work place.

Long, more difficult, and more controversial answer? Building Dual Power: Where They Retreat, We Must Advance

But the idea that you can just show up at a booth and hit the "No Fascists" button to make fascists go away is American consumerist brainrot.

Fascism is a consequence of prolonged, flagging, imperial expansion. It isn't limited to a single party. It's what happens to surplus military personal when they get mobilized by the excess capital in the private sector.

You fight it by building a community in your neighborhood that is self-reliant and resilient to violence from abroad. You can't contract some third party to politely ask fascists to leave you alone.