Targeting rental markets in St. Louis area

[Ben Kirchner]

I live in North Carolina, but have a lot of family in the St. Louis area.  Some in St. Charles, MO and some in Belleville, IL.  I'm expanding my search of rentals in this area.  I would be looking at properties remotely, and getting help from my family to be my "feet on the ground" to tour properties.  I wanted to get input from locals on the best rental markets in the area of St. Charles, MO and Belleville, IL.  

Thank you!

Ben