Breeding advice for a stakkato x voltaire mare

Kindly looking for any breeding advice on my stakkato x Voltaire x grannus x Argentinus mare. She is lovely character with excellent jumping technique, but rather on the smaller side (she’s ca. 164). What I’m looking for the most is adding some scope, size and bigger canter. Are there any specific bloodlines crossing well with stakkato? I’d be grateful for any tips and suggestions!