Contact the Democratic Party in a state you want to help, or that state's voter protection organization.
All work right now is remote anyway.
Senate races are just as important, so look at those (like McConnell)
Whenever I've done phone banking, I've usually called people in other states.
From the text messages I received during the primaries, it looks like "phone banking" is also "text banking."
I feel better when I'm active.