Thank you for joining patreon. Currently, I am uploading the same content as fantia.
I decided to participate because I was told that even those who have problems paying with Fantia can use Patreon. I heard that it is possible to sell single items as downloads on Patreon, but I can't find a way to do that at the moment.
We have also contacted the management and would like to register the product when possible.
I was planning to use gumroad as well, but the regulations for gumroad are becoming stricter at this time, so it may be difficult.