@Emily Kaye as kinda alluded to in the posts above I would recommend that you start working on getting in the kind of mind set for when your big opportunity presents itself. Work to identify the specific area or neighborhood you want to be in, contact a agent and start receiving deals on the MLS. Join your local REI and start networking, you may meet a wholesaler that has a property at a discount that will work for you or potentially an investor that wants to invest in you and your idea and JV with you on this. Build out your business plan and know your numbers, what can you expect in revenue, initial capital required to furnish your units, turnover costs, utilities etc for the type of property you have in mind, they won't be set in stone because you don't have the exact property but great planning leads to amazing execution. Start looking at places like FB marketplace, craigslist and other places for deals on the stuff you need to furnish your units, if you snatch up stuff when it's dirt cheap over time it will significantly reduce your costs as opposed to rushing it and doing it all at once. Having said all this I'm gonna be honest, I haven't done an STR yet but I plan on buying my 1st this summer as a vacation home and that's my plan. Until then I'm BRRRRing until the wheels fall off in Texas.
Best of luck and keep posting as you continue your journey!