For those just starting out and the never ending who shops who..... try this... start a little black book. When you get a email of companies but none in your city write it down such as today I got Chick-Fil-A .. none local. But now I know the company and yes it changes but.. its a start. When they build one here I already have a starting point.
Yep, been doing this for years. Have the binder full! I even cross-reference: shop & MSC, MSC and shop. Each in alphabetical order. I don't wait for e-mails or phone calls, either -- I use PrestoInstaMaps and other platforms to find jobs and MSCs.