New here! I've been active on the
DCL and ABD boards where I've enjoyed reading about Calypso's travel hacking experiences. Now I want to learn how

I need a points strategy for trip planned from Los Angeles to New Zealand in Dec 2021.
Cards applied for in past 24 months: 0
Cards I currently have: Chase Sapphire Pref, United Explorer, Marriott Bonvoy
Monthly spend: $5K
Payoff cc?: Yes
Airport: LAX
FF program: UA MileagePlus
current points: 500K UA, 100K Chase
Goal: 3 business/1st class tix to New Zealand
When: Dec 2021
Travel Party: me, husband and teenaged son
Thanks for any advice or suggestions!