What are the highest quality search engines?

It is becoming near impossible to find relevant information from search engines. Duckduckgo, SearXNG, Bing, Google, and so many more mainstream engines have a significantly high noise to signal ratio, and it is getting worse.

Here are a collection of the best search engines I know, please add more to the list.

• Forum Search Engine: https://crowdview.ai/

• Non-commercial Search: https://search.marginalia.nu/

• Libre Meta Search Engine: https://librey.devol.it/

• Golden Age Search Engine: https://www.wiby.org/

• Yandex: https://yandex.com/

If no more high quality search engines exist, would it be possible to host your own?

EDIT: Some new discoveries. The addon uBlacklist and filters can block super SEO sites from appearing in search.

• https://addons.mozilla.org/en-US/firefox/addon/ublacklist/
• https://github.com/rjaus/awesome-ublacklist
• https://github.com/NotaInutilis/Super-SEO-Spam-Suppressor