Any ER merch shops in Chicago?

Hey! My family and I have always loved the show and we're planning a trip to Chicago for the first time (international). Does anyone know of any cool stores or something like that dedicated to ER and/or other media filmed in the city? It's a specific request but I figured I'd check, just in case

Also open to suggestions of anything else related to the show (food recs?) that might be in the city, besides visiting the filming locations!