Fed Hill is a great spot for young professionals. I live downtown but spend a good chunk of time in Fed Hill at restaurants and seeing friends.

Seems to be a dog-friendly city (I don't have a dog but my friends when we go out don't have a problem finding outdoor seating at restaurants that accommodate dogs).

Moved here last year from Midwest. Not super easy to meet people (compared to Midwest) but if you put in the effort, you'll get the results you want. Dating scene is good - I met my girlfriend via Hinge a year ago. Providence is a young professionals city it feels like most days. Lots of good bars too (not just college bars).