Charts Module

Module Type: 
External Support

We are refreshing the annual report website this year and would like to show a variety of different chart blocks on certain pages of the site. In the past, we made chart files in Photoshop but know that that does not meet accessibility requirements. Would we be able to install a module that can help display charts on our page (also looked into Google Charts as an option but not sure the security of that)?  Is there a cost to adding a module to our website?