The most popular patronage service for supporting webcomics artists, you probably already know it.
A libre alternative to Patreon designed for more privacy and lowest transaction fees.
An alternative to Patreon using €uros with an interface translated into French, Germans, Spanish.
The well known payments system that supports online money transfers with many available currencies.
A cryptocurrency based on the open-source software Duniter and a web of trust.
Free of charge within Europe and works world wide:
Here is an adress where I'll receive your boxes and letters:
David REVOY au Cabinet Dentaire
135 Avenue des Mourets