I try blocking it standing or crouching and I still get hit with it very annoying on wakeup
Jump.
Option select parry/block. When it’s about to hit, just pick a direction and tap it. You’ll either parry if you guessed right or block if you guessed wrong. Always block or parry high.
This may or may not apply to online play, where dumb stuff like that is better than it should be.
Jumping doesn’t always work and I get hit with a heavy or a med
Close thread, igloobob answered the question 
Like, on P1 side 3~[4] or 6~[1]?
stomp is an overhead so theres no reason to include downback directions, and the side you’re on doesnt matter, which is the point of the OS. i prefer to press a direction and hold it briefly instead of tapping it, because you cant immediately move due to either parry freeze or blockstun anyway, and holding it reduces the chance of getting hit by a weirdly timed stomp.
in my case, on either side it would be [6] or [4], with the press being done when the move is about to hit, and holding it for no longer than roughly 10 frames
online this goes out the window because, due to frustration, youll be itching to get a deliberate parry instead of an OS to maximize your follow-up. it can be like that offline too, at times
sorry for bein wordy