Let's be reasonable here ... they aren't running out of options; they're running out of monetizable options by hosting a centralized repository. Patreon is still an option, as are many others geared toward individual creators.
I shot a fair amount of porn of my then-wife starting in 2010 -- predating OnlyFans -- and the monetization options were so terrible (she categorically refused to hand over a 40% commission on principle) that we just posted to FetLife for free. Payment processors hold far too much power, essentially being extragovernmental censors