That's not what oki is. Oki is controlling your opponents wakeup. So something like Lambda wheel is oki, because it forces you to tech or your gonna get fucking hit again. A meaty is a meaty, but that doesn't mean I have to wake up up and block it. I could roll away or whatever. Daisharin is oki, wheel is oki, meaties that force you to wake up a certain way like Hakumen's 6A in the corner are oki.
So basically, Hazama doesn't have especially strong oki. 2B and 2A are good choices to catch your opponent quick teching or rolling out of the corner. If you're talking about stuff to so on their wakeup, I don't know. Pick anything. + on block 5B, the quick low 2B, a meaty 6A, stance overhead/low, command grab/throw. I mean, take your pick. You got options. But there is nothing that will essentially force them to wake up a certain way.
THIS GOES FOR ALL OF YOU I GUESS.