A new MoneyLion study highlights fast growing, affordable cities. Texas led the list with 11 of the nation’s 50 fastest growing, most affordable cities. New Braunfels ranked No. 2 overall, with five-year population growth of 31.7 percent. Its median household income is $86,021, with estimated homeowner costs of $45,672. The study says that leaves residents roughly $40,349 a year after major expenses. Frisco took the number one spot, with 23.9 percent five year growth and $150,212 median income…