Eros is a great resource for finding many wonderful providers, but can anyone recommend providers on CL for Philadelphia and the suburbs?

In general, I wouldn't recommend CL...pretty low-yield.  You can find the occasional diamond in the rough, but for the most part you get what you pay for.

There's an ebony BBW named Mercedes who advertises on CL and provides a superb massage session (no FS though).  There's another ebony provider named Nadine who advertises on CL, and also provides an excellent massage, with FS available.  

Some other CL providers have been reviewed on TER, but the overwhelming majority of them are nothing to write home about.