I have several ways to find a models, first one is internet. I do not use modelling agency at the moment. There is a website called modelmayhem.com you can reach million of models there but not all of them professional, some beginners some had some shoots some spend a year or more and some of them are pro. I search local models all the time but consider surrounding area too. Second option using kijiji and its one of my favorite, you can find new models there and have some tf shoots without spending money. also you may try other modelling sites like yomodels.com.