There used to be this service called Flattr, and it's still around, but I'm honestly not sure how it works anymore. The way it used to work is you set a monthly amount you're willing to contribute, you get to specify which projects to support, either one time, or recurring, and then your contribution is split up between the projects you chose to support.
I don't know if this is an ideal system, because some creators might end up staying unsupported even though people are using their creations, others end up reminding their audience constantly to use the service and support them, so they end up with more than a similar creator not reminding their audience.
In the end, I think the best thing for all creators would would be universal basic income. Everyone is taken care of such they can survive and pay for necessities, and then they can just create stuff for others to enjoy, for free. (Oh, the humanity!) No trying to convince people to share part of their hard-earned money just for basic survival.