Her only Guard Break is from 3PK, and it's quite gimmicky at best. Not that it'll never work, but you're not likely to get it off too often.
If you just want standard +frames which accomplish the same thing as GBs without the animation, you have 46H+K, P+K, 4P, BT P (all of which are +1), then you have BT 9K and BT 4P (both are +3).
P+K is one of her best force techs. 1H+K is also very effective.
What do you mean by "tech roll" move, though?