I use one particular search engine which is a synthesis of several. Have to recognize, the search is the first step in a multi-step filter.

Ignore the ads and obvious product promotions. Skim a few promising leads. Narrow it down until you have something real, authoritative (more or less) and pertinent.

Harder to do with some topics than others I'm sure.

Start at the end. Links, portals, alt search sites, and aggregates are helpful. Random, small web pages, inspiring sites. It is all very ethereal.

For example, today's exploration might be: peltier diode