Need Recs: New World Non-Traditional Method Sparkling

I’m preparing for my WSET-D4 Sparkling exam and I need to taste a New World Non Traditional Method Sparkling wine of good quality.
Any recommendations of a wine that fits this description and is easily accessible (major liquor/wines shops)? Sparkling Rosé is ok too.

Just a heads-up, Australian Shiraz is a different category.

 

Thanks!