> where does this perfect search capability exist in the world that allows one to search for goods and services free from all advertising.

That an alternative is not easily available, does not somehow make the existing services ethical.

That said, and the mystical service is called your friends/family/neighbors/colleagues/etc. It ain't perfect, but it's remarkably effective. In the 2-300 people in your first and second degree networks, there's probably a few anecdotes to help you find a good product.

It even has a neat name: word of mouth.