On the villain side, at least, there are a lot of RP FCs that are participating in public RP and cross-FC RP. My old FC, Tylwyth Narah, is very strong in this area. Sepulchre is another, though I believe their recruitment is by invitation only, as is Jackal and Hyde on the EU time zone front.
There are also a number of solid RP FCs on the neutral or good guy side that do the same. I'd like to especially call out The Dauntless and Shroud Wolves here.
There are also a number of solid RP FCs on the neutral or good guy side that do the same. I'd like to especially call out The Dauntless and Shroud Wolves here.