Disregard the source you are getting the information from and look for articles from trusted sources that talk about topic.
Research the claim, not the source.
Check other news organizations to see if they are reporting the same story. The fast way to do that is to search on Google News or another news search engine. Discover if other news organizations are reporting this story and what are they saying. Investigate the news organizations that are reporting on this source. Do they lean conservative or liberal?
Save time by checking if the claim has already been investigated by a professional fact-checker. I recommend the Google Fact Check Tool because it searches multiple fact-checking websites.