What streets in chicago are heavily populated by businesses? (Not Downtown)?

I'm looking like streets and areas like Clark street in the Lakeview and Lake Park area. They have lots of interesting businesses. What other streets do you know like that in the Chicago area i.e. Evergreen Park.

You don't say what type of businesses....large, small.
Or what type of clientel you are looking to attract.

Usually where there is are three street intersections, e.g.
Irving, Milwaukee, Cicero [six corners- middle class, middle age]; Damen, North Ave., Milwaukee Ave [wicker park - yuppies]; Belmont, Clark, Sheffield area [younger gen...weird small stores, tattoo shops, etc.]; Harlem, Irving, Forest Preserve Drive [upper middle class].

Otherwise, any "main" street in Chicago usually has their 'business' area. However, you don't say what side
of the city you are specifically looking at...north? south? west?
Well...good luck.

michigan avenue (the mag mile)

Try millwaukee ave from division northbound. Central and Belmont. Harlem ave from fullerton to higgins, devon ave east of california ave.
there is some

Western, Halsted, Ashland (from north to south, suburb to suburb) These streets have interesting businesses. Also, in Beverly 95th, 103rd, 111th, 115th, 119th.

Chicago Avenue near Wicker Park and Westtown also have nice businesses as do Division, Milwaukee Ave, etc

Hyde Park