>Is there any place on the internet capable of freedom of speech?
>hosting my own servers
You might have answered your own question here.
Or consider that a baseline, and it still may not allow as much freedom as you have in mind.
Plus I don't think there is as much risk of a search engine killing a free-speech utopia unless it was a search engine that brought it to life in the first place, or was keeping it on life support beyond it's natural healthy lifespan.