Below are a few sites, that once signed up to, will pay to to blog/post about particular brands and products. Once you have signed up and completed your profile, you can submit to available projects where you fit the criteria. Each site has a different policy, so of course, it is always a good idea to do your research and read the small print before entering into any project.
FullBottle (please say Lydia Goffron referred you!)
Let me know if this has been helpful and how you get on if you sign up in the comments box below :)