List Aggregation

I'm too deep in the weeds with my current project so I don't have any intention on starting another side project, but it'd be neat to have a website that contains lists of stuff (e.g., states, countries, cities within countries, sports teams in a certain league, common job titles) and can be exported in a format that you desire (e.g., JSON, CSV, array/list, text file, "copy to clipboard") in addition to an API so that you can pull whatever list(s) you need into your code. End users can provide suggested updates to certain lists and/or add custom entries to their exports without impacting the core list.

Definitely feeling the pain of going from one website to another for the data I need for my project, hence why I thought of this.