1) A cue can help you figure out how to do it right
2) A cue can help you remember to do it right consistently during your practice, once you've figured out how to do it right.
Which type do you mean? And for which of the two corrections - the hinge, or the standing plank?
If it's #2, I'll suggest that the best cues are ones you think of yourself that helps you remember to do the specific things that you tend to lack. Then repeat "your" cue to yourself in your practice. (Learning to do this is one of the secrets to progress and success!!)
If it's #1, then you might need more instruction.