How would one know if Youtuber is independent? Say, I need to buy a lawnmower. How do I know which reviewers are good and which are idiots and which are paid sh

How would one know if Youtuber is independent? Say, I need to buy a lawnmower. How do I know which reviewers are good and which are idiots and which are paid shills? It's kinda hard to figure it on YT. If I have a specific product in mind, I can look through YT reviews of this specific one as a point of information. But if I have 100 potential lawnmowers to sort through, I won't watch every YT review for 100 products, I'd have to take a sabbatical for that. YT doesn't fill the niche.