If you are actually generating that much on adsense I think you'd likely make 20-30% more if you moved your ads to a high quality agency like adthrive or mediavine (those 2 are the only ones I'd firmly recommend over adsense). I'm sure you'd be approved by at least one of them based on the description of your site.
I used to use adsense on all my side sites too and just focus on the content and UX, but once you reach a certain volume (which you are well above), you are leaving a lot of money on the table not investing the effort into improving your ad monetization.
Thanks. I'll look into those. I get a few pitches per week from ad agencies but don't know which are legitimate or worth it. It's doing so well that I'm paranoid about touching anything revenue related.
Just stick with adthrive or mediavine and you'll be fine. Many others are scammier (though in fairness they'll all probably outperform adsense).
You can search Reddit and you'll see the same advice over and over again: Mediavine/adthrive are the best.
I can't give you first hand advice on mediavine but one of my sites is on adthrive and I can confirm it's very good! Outperforming adsense by around 50% (though this will vary based on your specific niche/topic).
But my advice is also to learn about the ad ecosystem yourself. Once you reach a certain level of revenue you just have to learn about it, it's going to delivery a very high ROI as compared with other things you can do.
I used to use adsense on all my side sites too and just focus on the content and UX, but once you reach a certain volume (which you are well above), you are leaving a lot of money on the table not investing the effort into improving your ad monetization.