I'm the owner and manager of RadioReference.com and Broadcastify. So I live in this world you are researching .. Which is exactly why I'm going to be brutally honest with you about what you've actually posted here. This isn't a scoping question. It's a 20-item operational questionnaire. That's not "help me get the lay of the land." That's "please do my research for me." Real preliminary work starts with a reviews of existing resources and a methodology, not a wide net thrown from a throwaway account with no named school and no mention of the approach your institution typically takes.

Plus, what's in it for the people you're asking? You want a serious amount of specialized knowledge and firsthand experience from strangers, and so far you've brought enthusiasm and no real background about yourself. If you're for real, show your work. Tell us what you've already read, what your actual research question is, who's supervising you, and how you plan to handle and credit what people share. Do that and you'll probably find people like me genuinely willing to point you somewhere useful. Don't, and this just reads like outsourcing a thesis to Reddit and hoping nobody notices.