Where’s great cashflow with low cost of entry

[Ben Jespersen]

I plan to buy my first full on rental (we’re currently working to make our home a house hack) in 3 months. I want to take that time to find a great place to invest for cash flow and set up a team so I can do almost everything remotely. 
I’ve read a few things about cheap prices in the Midwest and have been looking into it. Any advice on where I could focus to get the best cash flow for my investment? 
I have about $20k to put into the investment and should have more by the time I’m ready to buy.