Indiana
https://www.thrillist.com/lifestyle/indianapolis/most-haunted-places-in-indiana

Pennsylvania
https://en.wikipedia.org/wiki/Reportedly_haunted_locations_in_Pennsylvania

Arizona
https://eu.azcentral.com/story/travel/arizona/2017/10/02/haunted-places-arizona/693106001/

Utah
https://www.cbsnews.com/pictures/the-most-haunted-places-in-america/29/
https://www.hauntedrooms.com/top-10-haunted-places-utah

California
https://www.ghostsandgravestones.com/san-diego/haunted-places-in-california

New York
https://www.timeout.com/new-york-state/things-to-do/most-haunted-places-in-new-york-state

Nebraska
https://www.hauntedrooms.com/12-haunted-places-nebraska

Nevada
https://www.thrillist.com/lifestyle/las-vegas/haunted-houses-in-las-vegas-nevada-halloween
https://travelnevada.com/adventures/32936/19-ways-nevadas-haunted-history

Ohio
https://www.cbsnews.com/pictures/the-most-haunted-places-in-america/7/
https://www.thrillist.com/lifestyle/cleveland/most-haunted-places-in-ohio

North Dakota
https://www.hauntedrooms.com/11-haunted-places-north-dakota