Meanwhile, gross rents of $1,800+ for 3-bedroom single-families is an achievable figure, so it’s possible to generate cash flow if you lever modestly.There’s a bunch of other stuff that’s worth highlighting—the economy, demographics, neighborhoods, new construction, and more.

The Real Estate Guys do a great newsletter with lots of high-level information about the economy and how it impacts real estate.  

In depth knowledge of a city's economy is not necessary if you are buying a single SFR.

I have been to the DFW area a few times but not specifically to these northern suburbs, but I know that DFW is one of the fastest growing metro areas in the country with a robust economy, and I expect it to keep growing.

The combination of Germany's stable economy, well-regulated property market, relatively low interest rates, and the opportunity for long-term capital appreciation make it a compelling choice for U.S.

On top of that, we'll see a booming economy. 

Atlanta is a strong multi-family market with a diverse economy, a growing population, and increasing demand for rental properties.

This is primarily for MF where there are greater economies of scale.

With that said, I've done some research on the market and found the following information helpful in my considerations for Phoenix that you might find helpful as well:  Demand for both buying and renting property remains high due to the city's strong economy and growing population. 

also we do not know what is going to happen with int rates, they are very high now, the economy is not good and it is not certain they will be coming down this year. we know there will be more responsible gov spending, so maybe rates will come down, no way to know...I think you need to know the market where you plan to buy well, and go from thereBest of luck