The web is filled with courses in storytelling and story-writing. Some are written by famous authors, others by experienced teachers. Many are useful; sadly, many others are not.
Even the most useful courses seem to cover similar ground, containing treatments of the most obvious aspects of stories: plot, conflict, theme, setting, characterization, etc. To be sure, those can be useful!
But the vast majority of essays and courses stop well short of the "nitty-gritty"—the actual options available to all storytellers and story writers for how to express each element of stories: plot, conflict, theme, etc.