Working in the medical field it can be difficult to find specialized imagery without shooting it yourself in-house however Getty has a pretty vast library. They've also done a nice job staying up with 'mask' imagery during the current COVID pandemic which my organization had a very high demand for. You will also find the photography to be more diverse than competitors and their search engine's suggestions are usually pretty spot on.
As I am a content marketer, every day I have to fight to get top-ranked for my articles. So, SEO should be perfect. For my content side of SEO, MarketMuse is a lifesaver to me. It helps me to plan my content, get the score of my content, and the suggestion to optimize my articles. It saves my time and money too.
The support I have received from all MarketMuse staff at each step of the process has been excellent. They are very friendly, quick to assist, and also provide really good training to teach you how to use their product. Additionally, their own blog is a wealth of information regarding different aspects of content marketing, from articles to video interviews.
I could probably rattle after a dozen 'stock' photo companies that tout claims such as '$1 downloads, etc.' but don't bite on them, their libraries are extremely limited and you'll end up seeing photos you've used all over the place. For example, we once used a woman for a magazine cover who I also saw on a Southwest flyer, a Home Depot ad and on a poster at my kid's school all within a few months. It waters down your brand.
MarketMuse is more cost-effective than BrightEdge and does more for writers and editors that are strictly focused on content. It keeps people in one system after their first draft. Writers and editors do not need to go into multiple tools to look things up manually, saving valuable time. This enables them to produce more content more quickly.