For 3 years I've been providing tutorials in artwork and animation. I have 2.2K subscribers. Just got monetized. I'm interested in getting my hands on some filming equipment like cameras conforming green screen equipment, lights. Stuff like that. I'd be willing to review products like that. I'd be able to start reviewing art supplies at that point. Currently I can review products about the digital mediums. Like graphics tablets, screen tablets, computers, Tablets like the ipad, its apple pencil which can be related to my content. I do insist I am not a salesman. I am a reviewer. As far as office supplies go. I can review easels, a drafting tables, markers, pencils, etc that pertain to artwork or animation. I have a special relationship with my subscribers so I need to make clear that I'm a reviewer on this site and not a salesman. The goal is to leave a happy review of a product. But if the product has small or glaring flaws, my subscribers need to know. Some products are still VERY GOOD even though they come with some hiccups.
The minimum cost for a product to review is set at $1. My channel has been centered on free products or inexpensive but QUALITY software. I've used Opentoonz (free), Blender (free), Affinity Photo, Affinity Publisher, and Affinity Designer (Each Affinity product is $50 bucks.)
When a $1 mechanical pencil can draw an entire mural on a wall, why would the product need to be expensive to do art? So, as a result, if the product is expensive, cool. If it's inexpensive, cool.
If the product isn't art related, I doubt my audience will be interested at all.