Hello and welcome to BP @Christina Pribilla!
I also recommend you avoid assumptions like "check out states like, Arkansas, Georgia, Louisiana, and other southern states." Unless you are talking to someone who has experience in those markets, they are probably wrong. As someone who knows Louisiana, I would advise against buying anything in this market in the 20k range, except in some rare circumstance.
With your 20k, I think a good strategy would be to plan to use half as a DP on a duplex or 4-plex, whichever your market will allow, to go for the well-known house hacking strategy. Keep the other half as cash reserves. If you are eligible for an FHA loan, buy the best property you can afford up to what your DP funds will cover.
It might be difficult to find, but if you can't find one of the small multifamily properties mentioned, you have a buying advantage for a lot of REOs. You could buy an REO during the O/O only bidding period and buy something significantly undervalued. I would not recommend you try to buy anything that needs more rehab that's more than paint and flooring.
Those are a couple of ways to put your 20k to work and solve your own housing needs in one purchase.