Cash Flow and Appreciation for U.S. geographical locations

Hello all:

With many of the stories on Bigger Pockets, it seems that there are some states, and when narrowed down certain cities, in the U.S. that owning and renting out residential properties can consistently do very well with Cash Flow, but not necessarily with appreciation, if any at all.

Then, conversely, there also are many areas that do well with appreciation, and marginal with cash flow.

1.) Could you folks please provide opinions on the Top Five geographical U.S. locations for residential real estate (single family and multiplex properties [1-4 families]), in good areas, that have the best cash flow potential, but where the appreciation is basically flat?

2.) And, also, could you provide opinions on the Top Five geographical U.S. locations for residential real estate (single family and multiplex properties [1-4 families]), in good areas that have the best current appreciation and potential for near future continued appreciation, where the cash flow is respectable?

3.) Aside from Case-Schiller, could you recommend other great sources of real time data that provides appreciation rates for the U.S.?

Thank you all in the Bigger Pockets community for your time and expertise!

Best,

Bradley