Dear Jason,
Get Dwight Landis' book, "Trout Streams of Pennsylvania", a DeLorme Atlas of Pennsylvania, a buddy, and a cooler full of beer and do it like we did in the olden days, when he didn't have "the" book or the DeLorme Atlas.
I understand that you are just asking for suggestions and I gave you mine. I didn't give them to be critical or as a wisecrack. There is a lot to be said about just taking a ride to see what you can find.
If you stop to fish a creek make sure you talk to people around the creek. Ask them about the creek. Be polite, be honest, and you'll get things back in return. Stop in fly shops and tackle shops along your way too.
I spent 15 years of my life bombing around back roads and burgs in PA with my brother Terry. If I could have known what I know without the road trips I would have said, "No, thank you!"
Get out and explore!
Regards,
Tim Murphy 🙂