“None. However, we can write the leaders of the Georgia legislature and the Senate candidates asking them to demand a special session of the legislature to set up new procedures for the run-off.”
Too late for that. Changes would get bogged down in legal challenges, and would eventually lose in court.
Not too late to have a special session of the Georgia legislature and if this gets tied up in court the senatorial run-off can be delayed. This is worth fighting for.