Has anyone received an item for a review?

⭐️MerFerret⭐️ • Beagle mama • Lupus & Fibro • 🏳️‍🌈 bi
I was seeing a lot of reviews for baby items that said "I received this item for a free review". A lot of these were big ticket items, I figure it'd be amazing to get them for free if that's at all possible.
Does anyone know who/where to contact to do this? I prefer to get as many discounts as possible (although generally I prefer buying used since that's best for the environment ♻️).