To get the most bang for your buck, I would focus on 4+ bedrooms since they are the least saturated in terms of inventory.

You want to get your space rent ready if it does not already have a tenant and do not want to pay lots of cash outlay for capex items going in but instead get a credit from the seller to use post closing on those items.Check saturation and vacancy levels for the office you want to buy and how it is positioned in the complex.

Even in a "saturated" market you can make a nice profit on a STR, if your able/willing to put the extra money and time into what guests want and to stand out from your competition. 

Are these areas too over saturated with STR Condos to be profitable?

What is saturation level in the market for hair cutting places? 

Hower, it seems really over saturated so not sure if I should still look there2) NC -  I'm drawn to this state but am not as familiar with the cities. 

That seems to be a great method and I've heard of it many times, but I've always wondered about the saturation of that method and whether it nets any results...

I do know about Upwork/Fiverr/other contracting sites, and I have used them in the past (although they are pretty saturated TBH). 

The big boys are saturating this market with rental inventory as well as Nashville, Chicago and others.

Try looking into mobile home parks if you are interested in a less saturated space.