There is no one answer to this question as there are a variety of brands and influencers out there. However, some brands have been known to pay influencers for endorsements, sponsorships, or simply to post about their products or services. Some of the more popular brands that have done this in the past include Nike, Adidas, Lululemon, and Sephora. For smaller brands, it is not uncommon to offer free product in exchange for an influencer posting about it on their social media channels.