10-year journalism veteran here. You're not going to be able to walk off the street into a photojournalism job without a college degree. Even small newspapers require a college degree. The most typical degrees are journalism, English and communications. And understand that photojournalism isn't just taking pictures; it's reporting, and reporting requires strict adherence to industry ethics and law. You'll be hard pressed to find company that will take a bet on you if you don't know what's legal, illegal, ethical and unethical on day one. And you have to know how to interview people. You can find this under the News Values and Guide to Media Law sections of the AP Stylebook.
Note that this is not a lucrative job; however, a lot of my colleagues over the years supplemented their income by taking on work such as corporate portraits, event photography, etc.
Your best bet is to email either the photo editor or managing editors your clips and a proposal to freelance. If you're hired, you'll get soft news assignments until you build trust with the editors that you're capable of handling hard news without being a liability.>>3604722
If OP is in the U.S., that's not going to work because practically all public safety radio systems are encrypted thanks to 9/11 and the Department of Homeland Security funding conversions to all-digital nationwide.