Keyword search without SEO trash is EXACTLY what I want, and Marginalia sounds like it might fit the bill. Looking forward to seeing how well it performs over the next couple of weeks!
[0] https://help.kagi.com/kagi/search-details/search-sources.htm...
It's still a bit rough around the edges and technically limited. Index is pretty small too, definitely no straight up replacement for anything, but surprisingly often it provides a useful minority report where other engines fail.