Don't even need to be a scantily dressed female streamer these days. Just get a moving anime avatar and a voice changer. People are flocking to these new anime avatars that aren't even synced up properly (edit: talking about the trenders hopping on the train, not the Hololive cast).
Many streamers either fall into collecting simps, or collecting simp-bashers. There are a few middleground streamers that make it without streaming popular things, but it is a little telling many rising talents are either glorified cam girls or loud, boisterous memers. If you don't fall into either of those extremes, you're fighting for a much smaller audience and it is very likely you'll hit a hard ceiling around 50-500 viewers with very few exceptions (especially people that don't have a huge legacy from the early 2010s).