Referring to your comment on "cashing out a few months later", my lender has said cash out refinances are definitely available but they only cash out at 75% LTV right now due to the uncertainty due to COVID (usually 80%, have seen some at 90%) so keep that in mind, that you will only have something to cash out if you have 25%+ equity in the home either through appreciation or downpayment.
I'd recommend calling a few lenders and just telling them your plan and you can hear specifically for you situation if you're a candidate for a loan try big places like loandepot and smaller credit unions as well. Also if choose to get preapproved, you have a month (I think? It's been a while) to go to as many places as you want without dinging your credit score multiple times, they'll know if it happens within a certain amount of time you're shopping for rates rather than actually looking to get that many loans.
I'd recommend really figuring out what your needs/goals are and figuring out which method words best. The BRRRR, Fix & Flip, House Hack, Rental, Commercial all work for building wealth but for different needs and preferences. For example, I live in an expensive area and want to make my savings take me as far as it can so my primary goal is to reduce my expenses by house hacking then going into BRRRR or flipping. Maybe if you're trying to make money first and you have a place to stay, like your parents, maybe flipping would be a good option to build that capital first.
BTW soooo freaking awesome you're starting so young. Good luck, and looking forward to seeing what you end up choosing.