The easiest way to find "good" sources is to construct a "good" search for information. Google--and other search engines--is great for a quick search, but it can also be used for powerful, targeted searching that can eliminate or minimize irrelevant results.
Surrounding a phrase in quotation marks indicates that the words should be searched as a phrase, in the exact order in which you've listed them.
Ex: mental health day vs. "mental health day"
Replacing unnecessary words with "AND" and/or "OR" will generate more precise search results. This is similar to how you would search a database.
Using keywords also reduces the likelihood of unintentional bias in your searches.
Ex: Should employees be allowed to take mental health days vs. mental health day AND employee wellbeing
Specify a site or domain for your search using "site:"
Ex: site:hbr.org mental health only searched for articles about mental health on the Harvard Business Review site
Ex: site:.gov mental health searches for the term "mental health" on government webpages
If you find a good, reputable site, use "related:" to find sites that are similar
Ex: related:hbr.org will bring up a list of sites that people may consult in addition to Harvard Business Review.
Quickly narrow a date range by putting two periods between a range of numbers.
Ex: site:hbr.org mental health 2018..2020 will search for articles about mental health published between 2018 and 2020 on hbr.org
You can also search just one year by putting two periods and a single number
Ex: site:hbr.org mental health ..2020