Places Like Conns I'm Moving To Chicago In July. What Are Some Great Suburbs In Chicago, Places To Shop, Supermarkets Etc. ?

I'm moving to Chicago in July. What are some Great suburbs in Chicago, places to shop, supermarkets etc. ? - places like conns

I travel to Chicago this summer. I'm wondering a few things.

What a life as places of Nice, in the suburbs of Chicago?

Downtown Chicago is the only place to shop? Is there any other place or the well-known shopping centers?

What are the big supermarkets to buy food?

Thank you very much, appreciate all the answers.