As you are on the eastern side of NA consider flying west to east.
I returned to Australia from a cruise, Genoa/Miami, Nov 2019 by flying business class with Qatar Airways from Miami via Doha to Sydney. The service in Qatar business class could not be faulted. Each of the two legs were 15 hours each and it was the easiest, most comfortable long haul flight I have done and I've done a few from west coast to OZ. It was worth the money. I have also done a few flights from Oz to Middle East, Africa and Europe economy class with Qatar and IMHO they were better than Qantas of any of the NA airlines - Singapore Airlines comes close - and that's another airline you could check out, they do excellent Premium Economy service as well as Business.