I'm not using an ad blocker; when I search for Midjourney on Google the real thing is my first result; I don't even see any sponsored content. Not sure what's happening for OP.
(Please don't read this as a defense of Google on the whole.)
(Please don't read this as a defense of Google on the whole.)
But I'm in Europe. Perhaps that affects results? I wouldn't be surprised if the Google experience were more ad-heavy in low-consumer-protection nations.
Screenshot: https://imgur.com/a/hlF6OoU
How do you tolerate the web without an ad blocker?
Ideally Google would offer some kind of ad free option, perhaps on a higher tier of the Google One plans.