I've been looking around and this seems like the best deal, it also includes the GoPro subscription which gives a no questions asked new GoPro at $99 (similar to DJI's refresh plan)
Hero9 - $459 (full price $599.95)
SD $0 ($20 value)
1 year Subscription to GoPro $69.99
Charger $0 ($89 value)
Hope it helps! I'm not sure when the sale will end - they say until stocks last.
*A heads up that GoPro usually releases their new action cameras at the end of Sept/early Oct