I am a newly certified personal trainer. I would love to find a ready written news release to submit to the local newspaper.
I would advise you to write your own release. It gives you a chance to begin working on how you want to be perceived in your commmunity and it brings your personal touch to what you are trying to say.
You should contact the publications you want to have publish the press releases. They can tell you how they want the release to be formatted. You may also want to ask them how you can arrange for them to do a feature article on your business. I did this with our local newspaper a few times.