My last bastions of Google are:

1. Email. Its rock solid stable, but I know they are using it to mine data. This is a good service...but im still looking at proton at some point to make the switch. Or coming up with a solution myself.
2. Maps. Maps is also another really good service they give out for free. I have tried a huge number of alternatives, but still have no real alternative. OSM+ is the closest and works really well in emergencies but its pretty terrible at searching for anything specific to get to.
3. Youtube. This is the one I think I can possibly remove at some point. Some creators have their videos on other sites so it might be a mishmash for a while. But the best ones dont. I might just get into audio-books or some other sort of entertainment. Peertube is also a great alternative. And throwing money at !tilvids@mstdn.social might be better in the long run.

Ironically their search has taken a turn for the worse, so other sites are much better in my opinion.