The best thing for Trump supporters to do on Jan 20th is to stay away from Washington DC. Just let it be Roberts, Biden, Harris, and a few other diehards there.
Now if they are super star struck by Biden/Harris and absolutely want to see them in-person then try to find a different date/time to go watch/listen to them.
The best thing to do IMO would be for everyone to do “Facebook Live” of them doing something or anything besides focusing on the Inauguration. This would swallow up a lot of Facebook bandwidth too and what a pity that would be. But at least it would mean that they’d have proof that they weren’t part of the craziness happening at the Capitol that day.
The next move may be for the FBI to have Biden assassinated by a “Trump “ STOOGE