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Goode might very well decide the election in Virginia.
Due to that, he’ll be getting lots of press in the coming days. That will probably get his name on more ballots.
However, you are not entirely read into the process. The CP was on 40 ballots in the last election.
The process in states is different, but one can (1) get on the ballot, or (2) be an authorized write-in candidate. Those are separate items.
(2) is easier to achieve, so you can bet Goode will be available as either a name on the ballot or as a write-in candidate.
Wasn’t it Murkowski who proved the validity of a write-in campaign?