This is something I kinda wish was a more common feature: a robust tagging system. That way you could just opt in/out of the tags you don’t want to see. Reddit kinda sorta had a partial solution, but it always seemed tacked-on.
Of course, there are a lot of difficulties to make a good tagging system, and it requires either centralisation or coordination. The former goes against lemmy’s decentralised philosophy, and the latter requires a lot of extra moderation/admin work.
Searx is a meta search engine, which uses google by default as well. If you’re going to use it, you should probably go into the settings and turn on a bunch of other search services as well.
One of the benefits is that if you use a public instance, it’ll act as an anonymiser for google so they can’t track you as well.