Through trial and error, I found that Dynaplug is the way to go for road tubeless.
Unlike MTB, road tubeless has a pretty narrow pressure range for holding traditional plugs like Bacon strips. Too much pressure and the plugs shoot out. Too little pressure and the tires burp very easily.
The brilliance of the Dynaplug is the barb, which not only makes installation easier, but prevents the plug from ejecting under normal road tire pressures.
The kits are pricey but worth the money. I think they’re the last piece of the puzzle when running road tubeless.