For example (just as rough proof of concept)
Research articles: Pretty much any academic library website for published stuff, arxiv.org for white papers in computer science and math, pubmed for biosciences
audio equipment: gearspace.com
Encyclopedia: Wikipedia
Thesaurus: Wordhippo.com
The idea is to avoid needing to visit a search engine. Might be a high idea.
I’ll toss a few links into the hat…
https://repairfaq.org/
https://tutorial.math.lamar.edu/
https://acko.net/
Disclaimer: I’m a nerd. Hope you enjoy, and perhaps learn a thing or three.