We are still here! As several in this thread have already pointed out, there are still a handful of actively recruiting Forsaken guilds about. While we might not be the dominant race on the Horde, there are definitely avenues to find us.
What some people above have pointed out—particularly that we, as a race, are facing a lack of the “freshly risen” en masse and a lingering general distrust from even our allies after Sylvanas and the Fourth War—actually make this a very interesting (and cool) time to RP Forsaken. I’ve always enjoyed the “mistrustful, shady character” vibe of the Forsaken and while it was cool to be waging open war during BFA, leaning into the outsider vibe compared to the rest of the honor-driven Horde is a behavior rooted in our race’s origins from the time of the game’s inception. Remember when Forsaken characters started out with a “Neutral” reputation with Orgrimmar, Thunder Bluff, and Darkspear Trolls?
Anyway, all of that is to say please, come check us out! 
People who love the old school, darker vibe of the race will find themselves quite at home among the WRA Forsaken community.
If you’re available Saturday night, here is more info on the event Kirsy mentioned! [H-RP: Event] Sermon of the Forgotten Shadow