uBlock does a pretty good job by default of blocking sites, I wanted to add my own list to block some that have fell through the cracks.
click uBlock icon, go to dashboard, under custom click import, paste in the URL(s):
https://raw.githubusercontent.com/davidcraig/ublock-filters/main/filters.txt
https://raw.githubusercontent.com/CryptoSafetySquad/adblock-filters/main/crypto.txt
https://raw.githubusercontent.com/davidcraig/ublock-filters/main/mobileads.txt
https://raw.githubusercontent.com/davidcraig/ublock-filters/main/scams.txt
https://raw.githubusercontent.com/davidcraig/ublock-filters/main/other.txt
I have additionally made a separate file just for 'news' sites that post garbage content or lies (subjective, and this could technically be almost all news sites)
https://raw.githubusercontent.com/davidcraig/ublock-filters/main/news.txt