Bridgestone is my default. I used to get Uniroyal Steel Cats way back when but they got bought out by Bridgestone, at least locally.
My Dads old car still has Olympic tyres on it. Olympic were started in the 1930s by ex Olympic swimmer Sir Frank Beaurepaire. Eventually, Olympic were merged into the local Dunlop tyres company and became South Pacific Tyres. Then that merged into Goodyear and eventually renamed to Goodyear & Dunlop Tires (with the spelling change).
Somewhere in the last ~20 years the Olympic brand disappeared.
But they still run 3 retail chains: Goodyear, Dunlop & Beaurepaires.