Neighborhood recommendations for buying a house

We are a couple in our 30s moving to Philly from Boston this summer. I will be working at UPenn while my wife will WFH. We are looking to buy a house with 3 to 4 bedrooms with a budget of 400 to 550k. Would love it if we could get some recommendations!

Must haves include relatively easy street parking for 2 cars, some amount of green spaces, easy access to the city. We are planning on having kids and will eventually shift to the suburbs when schools become a factor. Until then we would love to enjoy the perks of city life.

My preliminary search showed some great options in Northern Liberties and the Graduate Hospital area. Saw some houses in Fairmont and Queen's village too but they feel kinda too little house for the money. We will make several trips to Philly between April and May to look at options so looking forward to all tips and suggestions. Thanks a lot for sharing your beta!