So far I've found two places with actual useful info: YouTube and reddit. YouTube has a reasonably working search engine so I just search directly there. Reddit doesn't so I end up adding site:reddit.com to all my Google searches.
Maybe there's some better forums than reddit that I haven't found yet, but this mirrors my experience from a couple of months ago when searching for new headphones, and a few months before that when researching a new laptop. All the interesting discussion is happening on reddit, and all the Google results are disguised sales pitches ("thanks for reading! Now click my affiliate link"). I'm close to automatically just adding reddit to all my Google searches when I'm researching something new.
Try an experiment. Think of a new product you might want to purchase, say, scuba diving masks . Search "best scuba diving masks" on Google. Now try adding "site: reddit.com" and check again. Which search do you think gives you more honest, useful info from people who are genuinely into scuba diving and not just trying to make a quick buck with a scuba blog?
Note: I don't know anything about diving and I haven't tested these terms, I'm just very sure it will be true for any random product you pick.