Looking for place and people you sell exclusive content ???

OR is there sites or place like this that exsist??
OR atleas content that is hardly out there....

Im going to shoot my own content but I want get some extra sets to balance out my stuff that Im eventually getting done... With some of someone elses stuff I think it will maka nice balance and offer some more on the sites where I put my content!
( I like options and variations! )
Any Ideas anyone or does anyone have and information?!!?
Please let me know!!