Who is actually worth learning Google Ads from at an advanced level?

I manage large-scale Google Ads accounts in a regulated industry, currently spending over $1M per day.

I’m constantly trying to level up, but I’m not looking for beginner courses or surface-level content.

I want truly advanced insight. Real scaling strategy. Auction dynamics. Bidding control at high spend. Structural optimization at scale.

If you had to recommend one person or one course that genuinely helped you operate at a higher level, who would it be and why?

I’m willing to invest. Just trying to avoid recycled material.

Appreciate serious recommendations.