To find local meetings by zip code, visit the OA World Service website.  Make sure they are meeting in person.  Check the Notes to see if they have moved to a virtual meeting format
https://oa.org/find-a-meeting/

Collection of Zoom Meetings in Excel Format – Check out all the tabs at the bottom.  The first tab is Chicago Area Meetings.

Virtual Meetings 1-8-21 Excel

Virtual Meetings – PDF Format