Add to your list to research corporate structures because LLCs are not always the best choice. A lot of people assume LLC is right for them based on advice from friends, but it’s something to think through.
For a solo operator an LLC is probably always the best choice. LLCs can elect to file taxes as S-Corps (your accountant is going to do this for you when you get to the point where your taxes are complicated enough). Sole proprietorships have all the downsides of an LLC and none of the potential upsides. C-Corps are complicated and are useful primarily when you have investors; if you take investment from an actual fund, they're going to want to rip up and re-do your corporate structure anyways.