"Is there some 'best way' for humid summers?"
Pruning the bottom 1/3 of the plant is a great idea. The 'blight' is in the soil and when soil is splashed onto the lower leaves from rain or watering, that's where the problem starts. A good layer of mulch helps, too.
And always pinch out the suckers at the crotch of the stems and the main trunk of the plant. That lets more air flow in, too.
Other than that, Prayer? LOL! ;)
Good tomato pruning tutorial here:
https://bonnieplants.com/gardening/how-to-prune-tomatoes/
Please note: Pruning is suggested for INDETERMINATE varieties, the ones that keep growing and setting fruit until frost. You can pretty much leave your DETERMINATE tomato plants alone, which are the ones that set fruit all at once, then are done.