[–] Disappointed 0 points 2 points 2 points (+2|-0) ago (edited ago)
AskUbuntu has evolved into a pretty good resource now for Ubuntu based distros. This is also a good resource: https://community.linuxmint.com/tutorial/search
For Debian users this handbook: https://debian-handbook.info/browse/stable/ is invaluable as well as the Wiki.
Also check all the Wiki pages next to the distros in the sidebar.
I've also used this site many times over the years: https://sites.google.com/site/easylinuxtipsproject/
[–] Stavon 0 points 2 points 2 points (+2|-0) ago
The main problem is there are too many resources to keep a list. But google or stackoverflow or other sites have your back for most problems.