highest sidewall on 230's?

hello, after countless broken tyres on potholes, last double one (front and rear) happened yesterday, I want to put as much sidewall as possible on the stock recommended 225/35/19 wheel, but reading about this diameters and stuff, I am confused and the higher number don't necessary means it will be also higher sidewall, so what size would have highest sidewall? 225/40? 235/40? 230/45? basically I want to make it more comfortable and more room for tyre to squeeze when there are holes or jumps over the road, even though i don't think i will avoid another tyre crash in the future, i just wanna eliminate it as much as I can, with no downsizing to 18's
the rear is running now 255/35/19, over the recommended 255/30/19....but there is minimal difference, as this tyre also exploded yesterday, and it's nightmare, this is happening every second month to me...it's crazy. the car is old, nobody wants to pay any real money for it, so i have to keep it....but it's a disaster since the beginning about 3 years ago, i decided to buy it...

highest sidewall on 230's?