Not sure about homegrown groups on MG-Horde as First Light ended their voidbaby adoption push but there’s a couple I know of that are communities that are offering to help:
Shadywish
Friendship Dragon
Best of luck finding a group and giving a sweet voidbaby a forever home.
Since you’re a Hordie, I’d recommend checking out fixnoone on Twitch, he’s a buddy of mine who would frequently do runs for Heroic Nya. I don’t know if he does them anymore, I never joined due to different timezones, but I know he used to do them every week. One of his characters is Ultimakage, if that one isn’t online, try to catch him live on Twitch. If you do catch him, tell him Roglach says hi.