@Aileen Soriano-Pisaturo Welcome to BP! The "purple bible" was hugely impactful for me as well early on.
I live in a high cost of living area (San Diego) and I've done a lot of out of state investing in the last 7 years or so. I own properties in Milwaukee, Oklahoma City, Tulsa, and Pensacola, Florida. I've used the BRRRR strategy, turnkey strategy, and I rent out property I've previously lived in as well.
You're asking the right questions, but the answers are too long for a single forum post.
Location: The population is generally moving south and east, so I would focus on the sunbelt states. If there are any markets where you have a competitive advantage (you know someone involved in real estate in a particular market, you grew up there, went to college there, etc).
Finding people: I love using the BP forums to find investor friendly agents and property managers and lenders. You'll need to vet them thoroughly though. I'm happy to share some solid interview questions I've used in the past.
You're on the right track! Keep asking questions and connecting with people that have already done what you want to do, and you'll achieve your goals.
Good luck and keep us updated on your progress.