How on Earth do I, personally, "figure out the market rate" for my job? The market gives me either no information or false information (at the very least unveri

How on Earth do I, personally, "figure out the market rate" for my job? The market gives me either no information or false information (at the very least unverifiable and untrustworthy information). I can ask my coworkers their salary I have no idea if they are being truthful if they answer (which they won't). I don't live in San Fransisco and I don't have any personal friends in the industry (and friends lie too). Software engineering jobs don't come up often here and when they do a salary range for the position isn't posted. If I am offered a new job my position in the salary negotiation is reduced since I still don't have any information about typical salaries, so we are at a catch 22. Additionally, I wouldn't want to actually negotiate salary for a job I'm not interested in because I'd like to not be known as the person who is constantly getting job offers then rejecting them, the market I small here.