My team and I put together an infographic on the costs associated with owning a variety of pets. I think it would go well with the type of content you put out. The primary source of the data used was aspca.org. We tried to be as thorough as possible, covering a variety of potential costs: food, medical, various types of equipment and toys.
The source of the infographic is https://www.certapet.com/cost-of-owning-a-dog/. This infographic is fully put together in an S3 bucket at https://s3-us-west-2.amazonaws.com/petinfographics/Pet-o-Nomics+101.png