Check the YogaFit website. They offer trainings throughout the country and are a great way to build up to your 200hr cert without spending a lot of money all at once.
Dhyanna Yoga in Philadelphia and Haddonfield has a good reputation but I do not have personal experience with them. Jai Yoga in Haverford is a Kripalu based program which is Hatha yoga and considered a “gentle” yoga. Good luck!