thats your problem wrong Way to go about it ..


frame size choice, is in relation to where you stand over it ahead of the saddle
your Butt off the seat .
If you really need to touch the ground without getting off the saddle

You need a crank forward frame bike, like Trek Pure .. they are not performance frames .
a recumbent, where you are way lower , you have the seat back to push against for power.

Saddle height is adjusted relative to the pedal-leg extension .

unless the BB height is really low tippy toe is normal at stops , some bikes, higher BB, It requires getting off
or pulling over and putting your foot on the raised curb.