HoloEN is facing gradual, but brutal decline over time. Only Gura seems exempt from this trend, and who knows how long that will last.
Vshojo is declining a huge amount, their viewership is getting cut in half over the past few months.
Luxiem is declining, a lot actually. It could be that most of their fans are underage and in school right now, but they're starting to get sub-5k streams all of a sudden.
The NijiEN girls are doing alright I guess. Not growing, but not falling either. Kind of stagnant. It's hard to know exactly because so many of them are on vacation over the past few months.
The smaller corpos, not counting Pippa, are pretty flat right now. They inclined over the past year, but their growth seems to have stalled.
Basically the entire EN scene right now is in a recession, especially over the past few months. Maybe we'll see some growth trends next year.