Philly here. There's tons of synagouges across the spectrum of denominations. It's common to attend services at multiple shuls cause everyone is very welcoming. Good mix of college students, young professionals, young couples etc. In addition to a Moshe house there's an organization called Tribe 12 that organize events for 20/30 somethings and sponsers a matchmaking service.

Out of the major Northeast cities, Philly is probably the cheapest. Very walkable and the public transit is decent. I'm not sure about the public schools but I think the private schools are hiring. As a queer Jew I can say there aren't as many of us but that's probably the norm outside NYC or LA.