We were taught the CAT technique (critical appraisal of a topic) during my Master degree. It’s actually very useful and has techniques to 1) search for articles 2) assess the quality of the paper and its interventions/method and 3) apply the findings to your specific situation (e.g. implementing a health-intervention at the company you work at).
I mostly used my university’s own manual but you should be able to find comprehensive guides and papers via google and pubmed
You may want to narrow down your search terms, I know PubMed recommends PICO (problem, intervention, comparison, outcome) for search terms, and from there you can use filters to further narrow it down.
Find people who do good research and then look at the papers they mention
people like Rhonda Patrick or Andrew Huberman or Gregory Geiger etc, the ones who actually mention real research and foot note it.
I am far from a vegan but Dr Geiger does lots of interesting vids on nutrition and he always mentions the specific paper he is talking about and its easy to look them up. Same with Rhonda.
Dr Brad Stanfield on YT always has links to the papers he talks about.