What OS version would run the best? (HP EliteBook Folio 9470m)

I would like to ask for a recommendation for an OS version, I managed to get Sonoma running but it wasn't the smoothest thing in the world. It would be good if the version still had some supported programs. Specs: Intel Core i5 3437U 16 GB RAM 120GB SSD Intel Dual Band Wireless AC 7260 (It is supported and works fine) Intel HD Graphics 4000