Hey @Haley Thornton,
Welcome! I always recommend my clients start by developing their "personal investment philosophy" (taken from the Real Estate Guys Radio podcast which is awesome if you haven't checked it out).
You need think about and write down what you want REI to do for you and how you want to be involved. If you know you want to do SFR and small MF already, then maybe come up with a 5 year plan for amount of doors or cumulative cash-flow and break it all the way down to goals you can achieve this year. Then you just need to come up with the action steps related to these goals.
When analyzing markets you want to look at things like population growth, job growth, a diverse economy and shortage of housing which Atlanta has in spades. There are certainly better markets and easier places to find deals, but don't underestimate how much of an advantage you're familiarity with Atlanta is. For instance, I bet you understand the impact of the Beltline, or the plans for Grove Park or Airport City, or what areas your millennial friends are buying houses in way better than an out of state investor would. Honestly I think you'll learn more and have more piece of mind at least starting out here. There are better markets than Atlanta but none that are so much better that it's worth the extra elements out of state investing will involve.
The best way to find deals is to build relationships with investor focused agents, get on every wholesalers list you can and unsubcribe the crappy ones. Also - strongly consider directing some capital to a direct to seller campaign. It may not sound like something you want to spend time on but at the end of the day, finding deals is the oxygen of REI and if you can go right to the source, you'll have no shortage of ways to make money.
I hope this helps! Best of luck! - Marc