Best way to hire contractors?

[Anthony Brancato]

I was supposed to be going into business with my brother. Unfortunately, he hasn't shown any initiative in the last 6 months to get his contractors license (red flag).
I'm from Chicago originally but I just moved back last year so my contact list has run pretty thin here. 
If you were new to an area how would you go about finding and interviewing for the best flipping contractor in the area? 
Would you use sites like Angies list or go off of reviews on google/yelp. Or is BP a good place to look and connect?

Thanks for your advice!