I'll start.
viewbots: 20%
unicorns: 20%
unicorns who have money: 2%
normies who just watch: 60%
oshi mark loyalists: 30% of viewers but like 90% of the chatters
chatters: usually about 10% of the viewer count
discord chatters: ~50% of the chatters
oilers: 0.1%
terminal autists who gets banned: 1%
artists, clippers, meme makers: 5%
jerks off during stream: 0%-100% depending on streamer but probably like 10% average
men: 95%
also men: 5%
men over 30: 50%
men over 40: 5%
men over 50: 0.1%