Killing three random dudes in a Dollar General isn’t going to “save the white race”. This guy’s plan is either evidence he was so dumb we’re better off without him in the gene pool, or was intended to kick-start the race war they want so badly. I refuse to feel sorry for him in either case. I’m not taking the high road. Fuck this guy.
For products I’ll immediately start with Project Farm on YouTube and see if he’s covered the thing I’m interested in. If he hasn’t I’ll try /r/buyitforlife. I’ll look on multiple sites of retailers I’ve heard of for reviews of products from a manufacturer I’ve heard of (no “WEEJIANGBEST” on Amazon) and give conditional trust to ratings averaged from 3000 or more individual reviews. If I’m feeling wildly thorough I might visit Fakespot to vet those reviews. If the product is expensive, I might pay for a month of access to Consumer Reports. If it’s really expensive, I will pay for Consumer Reports.
For services, those are local to me, so I tend to rely on fuzzy word-of-mouth stuff. I might look in the subreddit for my city, but tend more toward simply knowing the reputation of what’s around me.
Edit: for local businesses, I also look them up on the Better Business Bureau.