There is no “magic book” in genealogy research that will always answer your family history research questions. A source, published or not, that provides the answer for one person will not necessarily provide answers for someone else.
That said, finding out what sources others have used is helpful, because sometimes they do work or they at least lead to clues or additional sources that can help you progress on your research journey. Reaching out to others working in the same areas during the same time periods (related to you or not) can be a great way to become familiar with sources and techniques that may be helpful to your research. Local genealogy groups (both online and offline), local genealogical/historical societies, local libraries, etc. can all be ways to connect with others who have “boots on the ground” experience in locations where you are having issues.
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