Yes there are. Currently two of the three SGs
There is @CrazyCaliope’s Charmed SG
https://forum.shanniiwrites.com/t/charmed-coven-sg-sign-ups/12528?u=littlefeets
And there is my The Amazing Race SG
https://forum.shanniiwrites.com/t/the-amazing-race-sg-signups/11014?u=littlefeets