Though your question is a little vague; if you are already on a fire department I suggest looking to the training officer or Fire Chief for suggestions. If you are looking into breaking into this business without any previous exposure, then I suggest your State Fire Academy, Technical College or stop by the local fd for local options.
Now if you are looking for type specific training (specialty training) I have a training company that travels around the US. You can checkout my FFN Page here for history, background and and also my companies website @ www.fetcservices.com