>>49872009There's a JAV production company called Sex Syndrome, dedicated to cosplay. They release in fantia, I believe. Most of their photoshoots are in Sand Panda, and the videos in multiple pirate sites.
They've done a number of good enough Hololive content. Just googling something like "sex syndrome hololive" will give you a bunch of videos.
Outside the hardest of tryhards in comike, this will be the best Hololive cosplay you'll see. And they're getting fucked in front of you, so that's a plus too.