When looking at the West End, it's very important to stay north of Cranston Street and east of Messer Street. The other parts of the West End are very rough.

I'm glad that it seems you've removed Elmwood from your search. It is objectively among the very worst areas in Providence (and all of RI). It is not "chill", you won't find "young professionals" there, and anyone telling you they'd rather live in Elmwood than anywhere else in Providence is either playing a cruel joke on you or is trying to sell their house in Elmwood.

Personally, I'd recommend the part of Federal Hill between Broadway and Carpenter Street / West Fountain Street..