The GOP's only path is to go back to some form of Bushism, it's either that or going back to the Rockefeller Republicanism of the 60's and 70's. As a former Republican, who actually once had some faith in Trump, I've become completely alarmed by his racism, sexism, xenophobia, as well as his total incompetence in office. The GOP needs to have a platform that is more than "Dunking on the libz" if it wants to actually have a future. I think their best path is actually to nominate a Baker/Scott ticket in 2024 and try to reach out to the Romney Republicans and other voters who have become disenchanted with the modern GOP, and yes this falls into the second category.
You were never a republican
This isn't true, in fact, I actually backed Trump in 2016 and backed Republicans in the 2018 midterms, though eventually I became concerned with the direction that the party was going, and you can still see those remnants of Republicanism in me from me backing Susan Collins this year.